Merge pull request #3524 from tertsdiepraam/clap-value-hints

Clap value hints

src/uu/base32/src/base_common.rs

@@ -123,7 +123,12 @@ pub fn base_app<'a>(about: &'a str, usage: &'a str) -> Command<'a> {
         )
         // "multiple" arguments are used to check whether there is more than one
         // file passed in.
-        .arg(Arg::new(options::FILE).index(1).multiple_occurrences(true))
+        .arg(
+            Arg::new(options::FILE)
+                .index(1)
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
+        )
 }
 
 pub fn get_input<'a>(config: &Config, stdin_ref: &'a Stdin) -> UResult<Box<dyn Read + 'a>> {

src/uu/basename/src/basename.rs

@@ -102,6 +102,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::NAME)
                 .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::AnyPath)
                 .hide(true),
         )
         .arg(

src/uu/cat/src/cat.rs

@@ -249,7 +249,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::SHOW_ALL)

src/uu/chcon/src/chcon.rs

@@ -197,6 +197,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::REFERENCE)
                 .takes_value(true)
                 .value_name("RFILE")
+                .value_hint(clap::ValueHint::FilePath)
                 .conflicts_with_all(&[options::USER, options::ROLE, options::TYPE, options::RANGE])
                 .help(
                     "Use security context of RFILE, rather than specifying \
@@ -210,6 +211,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::USER)
                 .takes_value(true)
                 .value_name("USER")
+                .value_hint(clap::ValueHint::Username)
                 .help("Set user USER in the target security context.")
                 .allow_invalid_utf8(true),
         )
@@ -294,6 +296,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new("FILE")
                 .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath)
                 .min_values(1)
                 .allow_invalid_utf8(true),
         )

src/uu/chgrp/src/chgrp.rs

@@ -113,6 +113,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::REFERENCE)
                 .long(options::REFERENCE)
                 .value_name("RFILE")
+                .value_hint(clap::ValueHint::FilePath)
                 .help("use RFILE's group rather than specifying GROUP values")
                 .takes_value(true)
                 .multiple_occurrences(false),

src/uu/chmod/src/chmod.rs

@@ -157,6 +157,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::REFERENCE)
                 .long("reference")
                 .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath)
                 .help("use RFILE's mode instead of MODE values"),
         )
         .arg(
@@ -170,7 +171,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .required_unless_present(options::MODE)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::AnyPath),
         )
 }
 

src/uu/chown/src/chown.rs

@@ -134,6 +134,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::REFERENCE)
                 .help("use RFILE's owner and group rather than specifying OWNER:GROUP values")
                 .value_name("RFILE")
+                .value_hint(clap::ValueHint::FilePath)
                 .min_values(1),
         )
         .arg(

src/uu/chroot/src/chroot.rs

@@ -102,6 +102,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .infer_long_args(true)
         .arg(
             Arg::new(options::NEWROOT)
+                .value_hint(clap::ValueHint::DirPath)
                 .hide(true)
                 .required(true)
                 .index(1),
@@ -139,6 +140,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         )
         .arg(
             Arg::new(options::COMMAND)
+                .value_hint(clap::ValueHint::CommandName)
                 .hide(true)
                 .multiple_occurrences(true)
                 .index(2),

src/uu/cksum/src/cksum.rs

@@ -150,6 +150,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }

src/uu/comm/src/comm.rs

@@ -173,6 +173,14 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .default_value(options::DELIMITER_DEFAULT)
                 .hide_default_value(true),
         )
-        .arg(Arg::new(options::FILE_1).required(true))
+        .arg(
-        .arg(Arg::new(options::FILE_2).required(true))
+            Arg::new(options::FILE_1)
+                .required(true)
+                .value_hint(clap::ValueHint::FilePath),
+        )
+        .arg(
+            Arg::new(options::FILE_2)
+                .required(true)
+                .value_hint(clap::ValueHint::FilePath),
+        )
 }

src/uu/cp/src/cp.rs

@@ -314,6 +314,7 @@ pub fn uu_app<'a>() -> Command<'a> {
              .conflicts_with(options::NO_TARGET_DIRECTORY)
              .long(options::TARGET_DIRECTORY)
              .value_name(options::TARGET_DIRECTORY)
+             .value_hint(clap::ValueHint::DirPath)
              .takes_value(true)
              .validator(|s| {
                  if Path::new(s).is_dir() {
@@ -464,7 +465,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         // END TODO
 
         .arg(Arg::new(options::PATHS)
-             .multiple_occurrences(true))
+             .multiple_occurrences(true)
+             .value_hint(clap::ValueHint::AnyPath))
 }
 
 #[uucore::main]

src/uu/csplit/src/csplit.rs

@@ -797,7 +797,12 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::ELIDE_EMPTY_FILES)
                 .help("remove empty output files"),
         )
-        .arg(Arg::new(options::FILE).hide(true).required(true))
+        .arg(
+            Arg::new(options::FILE)
+                .hide(true)
+                .required(true)
+                .value_hint(clap::ValueHint::FilePath),
+        )
         .arg(
             Arg::new(options::PATTERN)
                 .hide(true)

src/uu/cut/src/cut.rs

@@ -614,6 +614,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
             .hide(true)
-                .multiple_occurrences(true)
+            .multiple_occurrences(true)
+            .value_hint(clap::ValueHint::FilePath)
         )
 }

src/uu/date/src/date.rs

@@ -272,6 +272,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .short('f')
                 .long(OPT_FILE)
                 .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath)
                 .help("like --date; once for each line of DATEFILE"),
         )
         .arg(
@@ -303,6 +304,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .short('r')
                 .long(OPT_REFERENCE)
                 .takes_value(true)
+                .value_hint(clap::ValueHint::AnyPath)
                 .help("display the last modification time of FILE"),
         )
         .arg(

src/uu/dd/src/dd.rs

@@ -742,6 +742,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::INFILE)
                 .overrides_with(options::INFILE)
                 .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath)
                 .require_equals(true)
                 .value_name("FILE")
                 .help("(alternatively if=FILE) specifies the file used for input. When not specified, stdin is used instead")
@@ -751,6 +752,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::OUTFILE)
                 .overrides_with(options::OUTFILE)
                 .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath)
                 .require_equals(true)
                 .value_name("FILE")
                 .help("(alternatively of=FILE) specifies the file used for output. When not specified, stdout is used instead")

src/uu/df/src/df.rs

@@ -583,7 +583,11 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .multiple_occurrences(true)
                 .help("limit listing to file systems not of type TYPE"),
         )
-        .arg(Arg::new(OPT_PATHS).multiple_occurrences(true))
+        .arg(
+            Arg::new(OPT_PATHS)
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::AnyPath),
+        )
 }
 
 #[cfg(test)]

src/uu/dircolors/src/dircolors.rs

@@ -187,6 +187,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
+                .value_hint(clap::ValueHint::FilePath)
                 .multiple_occurrences(true),
         )
 }

src/uu/dirname/src/dirname.rs

@@ -88,5 +88,10 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .short('z')
                 .help("separate output with NUL rather than newline"),
         )
-        .arg(Arg::new(options::DIR).hide(true).multiple_occurrences(true))
+        .arg(
+            Arg::new(options::DIR)
+                .hide(true)
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::AnyPath),
+        )
 }

src/uu/du/src/du.rs

@@ -884,6 +884,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .short('X')
                 .long("exclude-from")
                 .value_name("FILE")
+                .value_hint(clap::ValueHint::FilePath)
                 .help("exclude files that match any pattern in FILE")
                 .multiple_occurrences(true)
 
@@ -913,6 +914,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
+                .value_hint(clap::ValueHint::AnyPath)
                 .multiple_occurrences(true)
         )
 }

src/uu/env/src/env.rs

@@ -144,6 +144,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             .takes_value(true)
             .number_of_values(1)
             .value_name("DIR")
+            .value_hint(clap::ValueHint::DirPath)
             .help("change working directory to DIR"))
         .arg(Arg::new("null")
             .short('0')
@@ -156,6 +157,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             .takes_value(true)
             .number_of_values(1)
             .value_name("PATH")
+            .value_hint(clap::ValueHint::FilePath)
             .multiple_occurrences(true)
             .help("read and set variables from a \".env\"-style configuration file (prior to any \
                     unset and/or set)"))

src/uu/expand/src/expand.rs

@@ -207,6 +207,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .multiple_occurrences(true)
                 .hide(true)
                 .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath)
         )
 }
 

src/uu/fmt/src/fmt.rs

@@ -344,6 +344,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(ARG_FILES)
                 .multiple_occurrences(true)
-                .takes_value(true),
+                .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }

src/uu/fold/src/fold.rs

@@ -99,7 +99,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/groups/src/groups.rs

@@ -112,6 +112,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::USERS)
                 .multiple_occurrences(true)
                 .takes_value(true)
-                .value_name(options::USERS),
+                .value_name(options::USERS)
+                .value_hint(clap::ValueHint::Username),
         )
 }

src/uu/hashsum/src/hashsum.rs

@@ -423,6 +423,7 @@ pub fn uu_app_common<'a>() -> Command<'a> {
                 .index(1)
                 .multiple_occurrences(true)
                 .value_name("FILE")
+                .value_hint(clap::ValueHint::FilePath)
                 .allow_invalid_utf8(true),
         )
 }

src/uu/head/src/head.rs

@@ -107,7 +107,11 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .help("line delimiter is NUL, not newline")
                 .overrides_with(options::ZERO_NAME),
         )
-        .arg(Arg::new(options::FILES_NAME).multiple_occurrences(true))
+        .arg(
+            Arg::new(options::FILES_NAME)
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
+        )
 }
 
 #[derive(Debug, PartialEq)]

src/uu/hostname/src/hostname.rs

@@ -105,7 +105,11 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .overrides_with_all(&[OPT_DOMAIN, OPT_IP_ADDRESS, OPT_FQDN, OPT_SHORT])
                 .help("Display the short hostname (the portion before the first dot) if possible"),
         )
-        .arg(Arg::new(OPT_HOST).allow_invalid_utf8(true))
+        .arg(
+            Arg::new(OPT_HOST)
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::Hostname),
+        )
 }
 
 fn display_hostname(matches: &ArgMatches) -> UResult<()> {

src/uu/id/src/id.rs

@@ -443,7 +443,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::ARG_USERS)
                 .multiple_occurrences(true)
                 .takes_value(true)
-                .value_name(options::ARG_USERS),
+                .value_name(options::ARG_USERS)
+                .value_hint(clap::ValueHint::Username),
         )
 }
 

src/uu/install/src/install.rs

@@ -248,6 +248,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .help("set ownership (super-user only)")
                 .value_name("OWNER")
                 .takes_value(true)
+                .value_hint(clap::ValueHint::Username)
         )
         .arg(
             Arg::new(OPT_PRESERVE_TIMESTAMPS)
@@ -266,6 +267,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(OPT_STRIP_PROGRAM)
                 .help("program used to strip binaries (no action Windows)")
                 .value_name("PROGRAM")
+                .value_hint(clap::ValueHint::CommandName)
         )
         .arg(
             backup_control::arguments::suffix()
@@ -277,6 +279,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(OPT_TARGET_DIRECTORY)
                 .help("move all SOURCE arguments into DIRECTORY")
                 .value_name("DIRECTORY")
+                .value_hint(clap::ValueHint::DirPath)
         )
         .arg(
             // TODO implement flag
@@ -307,7 +310,13 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .help("(unimplemented) set security context of files and directories")
                 .value_name("CONTEXT")
         )
-        .arg(Arg::new(ARG_FILES).multiple_occurrences(true).takes_value(true).min_values(1))
+        .arg(
+            Arg::new(ARG_FILES)
+                .multiple_occurrences(true)
+                .takes_value(true)
+                .min_values(1)
+                .value_hint(clap::ValueHint::AnyPath)
+        )
 }
 
 /// Check for unimplemented command line arguments.

src/uu/join/src/join.rs

@@ -801,12 +801,14 @@ FILENUM is 1 or 2, corresponding to FILE1 or FILE2",
             Arg::new("file1")
                 .required(true)
                 .value_name("FILE1")
+                .value_hint(clap::ValueHint::FilePath)
                 .hide(true),
         )
         .arg(
             Arg::new("file2")
                 .required(true)
                 .value_name("FILE2")
+                .value_hint(clap::ValueHint::FilePath)
                 .hide(true),
         )
 }

src/uu/link/src/link.rs

@@ -46,6 +46,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .min_values(2)
                 .max_values(2)
                 .takes_value(true)
+                .value_hint(clap::ValueHint::AnyPath)
                 .allow_invalid_utf8(true),
         )
 }

src/uu/ln/src/ln.rs

@@ -232,6 +232,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::TARGET_DIRECTORY)
                 .help("specify the DIRECTORY in which to create the links")
                 .value_name("DIRECTORY")
+                .value_hint(clap::ValueHint::DirPath)
                 .conflicts_with(options::NO_TARGET_DIRECTORY),
         )
         .arg(
@@ -257,6 +258,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(ARG_FILES)
                 .multiple_occurrences(true)
                 .takes_value(true)
+                .value_hint(clap::ValueHint::AnyPath)
                 .required(true)
                 .min_values(1),
         )

src/uu/ls/src/ls.rs

@@ -1402,7 +1402,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 Arg::new(options::PATHS)
                     .multiple_occurrences(true)
                     .takes_value(true)
-                    .allow_invalid_utf8(true),
+                    .value_hint(clap::ValueHint::AnyPath)
+                    .allow_invalid_utf8(true)
             )
             .after_help(
                 "The TIME_STYLE argument can be full-iso, long-iso, iso. \

src/uu/mkdir/src/mkdir.rs

@@ -137,7 +137,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .multiple_occurrences(true)
                 .takes_value(true)
                 .min_values(1)
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::DirPath),
         )
 }
 

src/uu/mkfifo/src/mkfifo.rs

@@ -102,6 +102,7 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FIFO)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::AnyPath),
         )
 }

src/uu/mknod/src/mknod.rs

@@ -162,7 +162,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .value_name("NAME")
                 .help("name of the new file")
                 .required(true)
-                .index(1),
+                .index(1)
+                .value_hint(clap::ValueHint::AnyPath),
         )
         .arg(
             Arg::new("type")

src/uu/mktemp/src/mktemp.rs

@@ -202,7 +202,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                      be an absolute name; unlike with -t, TEMPLATE may contain \
                      slashes, but mktemp creates only the final component",
                 )
-                .value_name("DIR"),
+                .value_name("DIR")
+                .value_hint(clap::ValueHint::DirPath),
         )
         .arg(Arg::new(OPT_T).short('t').help(
             "Generate a template (using the supplied prefix and TMPDIR (TMP on windows) if set) \

src/uu/more/src/more.rs

@@ -183,7 +183,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::FILES)
                 .required(false)
                 .multiple_occurrences(true)
-                .help("Path to the files to be read"),
+                .help("Path to the files to be read")
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/mv/src/mv.rs

@@ -156,14 +156,15 @@ pub fn uu_app<'a>() -> Command<'a> {
         .help("move all SOURCE arguments into DIRECTORY")
         .takes_value(true)
         .value_name("DIRECTORY")
+        .value_hint(clap::ValueHint::DirPath)
         .conflicts_with(OPT_NO_TARGET_DIRECTORY)
         .allow_invalid_utf8(true)
     )
     .arg(
             Arg::new(OPT_NO_TARGET_DIRECTORY)
             .short('T')
-            .long(OPT_NO_TARGET_DIRECTORY).
+            .long(OPT_NO_TARGET_DIRECTORY)
-            help("treat DEST as a normal file")
+            .help("treat DEST as a normal file")
     )
     .arg(
             Arg::new(OPT_UPDATE)
@@ -183,6 +184,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             .min_values(2)
             .required(true)
             .allow_invalid_utf8(true)
+            .value_hint(clap::ValueHint::AnyPath)
         )
 }
 

src/uu/nice/src/nice.rs

@@ -117,5 +117,9 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .takes_value(true)
                 .allow_hyphen_values(true),
         )
-        .arg(Arg::new(options::COMMAND).multiple_occurrences(true))
+        .arg(
+            Arg::new(options::COMMAND)
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::CommandName),
+        )
 }

src/uu/nl/src/nl.rs

@@ -154,7 +154,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::BODY_NUMBERING)

src/uu/nohup/src/nohup.rs

@@ -126,7 +126,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::CMD)
                 .hide(true)
                 .required(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::CommandName),
         )
         .trailing_var_arg(true)
         .infer_long_args(true)

src/uu/od/src/od.rs

@@ -512,7 +512,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILENAME)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/paste/src/paste.rs

@@ -71,7 +71,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::FILE)
                 .value_name("FILE")
                 .multiple_occurrences(true)
-                .default_value("-"),
+                .default_value("-")
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/pathchk/src/pathchk.rs

@@ -108,7 +108,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::PATH)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::AnyPath),
         )
 }
 

src/uu/pinky/src/pinky.rs

@@ -179,7 +179,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::USER)
                 .takes_value(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::Username),
         )
         .arg(
             // Redefine the help argument to not include the short flag

src/uu/pr/src/pr.rs

@@ -372,6 +372,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::FILES)
                 .multiple_occurrences(true)
                 .multiple_values(true)
+                .value_hint(clap::ValueHint::FilePath)
         )
 }
 

src/uu/ptx/src/ptx.rs

@@ -754,7 +754,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::AUTO_REFERENCE)
@@ -826,7 +827,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::BREAK_FILE)
                 .help("word break characters in this FILE")
                 .value_name("FILE")
-                .takes_value(true),
+                .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::IGNORE_CASE)
@@ -849,7 +851,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::IGNORE_FILE)
                 .help("read ignore word list from FILE")
                 .value_name("FILE")
-                .takes_value(true),
+                .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::ONLY_FILE)
@@ -857,7 +860,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::ONLY_FILE)
                 .help("read only word list from this FILE")
                 .value_name("FILE")
-                .takes_value(true),
+                .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::REFERENCES)

src/uu/readlink/src/readlink.rs

@@ -161,7 +161,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(ARG_FILES)
                 .multiple_occurrences(true)
-                .takes_value(true),
+                .takes_value(true)
+                .value_hint(clap::ValueHint::AnyPath),
         )
 }
 

src/uu/realpath/src/realpath.rs

@@ -130,7 +130,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .multiple_occurrences(true)
                 .takes_value(true)
                 .required(true)
-                .min_values(1),
+                .min_values(1)
+                .value_hint(clap::ValueHint::AnyPath),
         )
 }
 

src/uu/relpath/src/relpath.rs

@@ -87,6 +87,15 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(Arg::new(options::DIR).short('d').takes_value(true).help(
             "If any of FROM and TO is not subpath of DIR, output absolute path instead of relative",
         ))
-        .arg(Arg::new(options::TO).required(true).takes_value(true))
+        .arg(
-        .arg(Arg::new(options::FROM).takes_value(true))
+            Arg::new(options::TO)
+                .required(true)
+                .takes_value(true)
+                .value_hint(clap::ValueHint::AnyPath),
+        )
+        .arg(
+            Arg::new(options::FROM)
+                .takes_value(true)
+                .value_hint(clap::ValueHint::AnyPath),
+        )
 }

src/uu/rm/src/rm.rs

@@ -227,6 +227,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             .multiple_occurrences(true)
             .takes_value(true)
             .min_values(1)
+            .value_hint(clap::ValueHint::AnyPath)
         )
 }
 

src/uu/rmdir/src/rmdir.rs

@@ -197,6 +197,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .takes_value(true)
                 .min_values(1)
                 .required(true)
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::DirPath),
         )
 }

src/uu/runcon/src/runcon.rs

@@ -156,7 +156,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new("ARG")
                 .multiple_occurrences(true)
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::CommandName),
         )
         // Once "ARG" is parsed, everything after that belongs to it.
         //

src/uu/shred/src/shred.rs

@@ -374,7 +374,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/shuf/src/shuf.rs

@@ -158,14 +158,16 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::OUTPUT)
                 .takes_value(true)
                 .value_name("FILE")
-                .help("write result to FILE instead of standard output"),
+                .help("write result to FILE instead of standard output")
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::RANDOM_SOURCE)
                 .long(options::RANDOM_SOURCE)
                 .takes_value(true)
                 .value_name("FILE")
-                .help("get random bytes from FILE"),
+                .help("get random bytes from FILE")
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::REPEAT)
@@ -179,7 +181,11 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::ZERO_TERMINATED)
                 .help("line delimiter is NUL, not newline"),
         )
-        .arg(Arg::new(options::FILE).takes_value(true))
+        .arg(
+            Arg::new(options::FILE)
+                .takes_value(true)
+                .value_hint(clap::ValueHint::FilePath),
+        )
 }
 
 fn read_input_file(filename: &str) -> UResult<Vec<u8>> {

src/uu/sort/src/sort.rs

@@ -1397,7 +1397,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::OUTPUT)
                 .help("write output to FILENAME instead of stdout")
                 .takes_value(true)
-                .value_name("FILENAME"),
+                .value_name("FILENAME")
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::REVERSE)
@@ -1461,13 +1462,15 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::TMP_DIR)
                 .help("use DIR for temporaries, not $TMPDIR or /tmp")
                 .takes_value(true)
-                .value_name("DIR"),
+                .value_name("DIR")
+                .value_hint(clap::ValueHint::DirPath),
         )
         .arg(
             Arg::new(options::COMPRESS_PROG)
                 .long(options::COMPRESS_PROG)
                 .help("compress temporary files with PROG, decompress with PROG -d; PROG has to take input from stdin and output to stdout")
-                .value_name("PROG"),
+                .value_name("PROG")
+                .value_hint(clap::ValueHint::CommandName),
         )
         .arg(
             Arg::new(options::BATCH_SIZE)
@@ -1482,7 +1485,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .takes_value(true)
                 .value_name("NUL_FILES")
                 .multiple_occurrences(true)
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::DEBUG)
@@ -1493,7 +1497,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::FILES)
                 .multiple_occurrences(true)
                 .takes_value(true)
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/split/src/split.rs

@@ -111,9 +111,11 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(OPT_FILTER)
                 .long(OPT_FILTER)
                 .takes_value(true)
+                .value_name("COMMAND")
+                .value_hint(clap::ValueHint::CommandName)
                 .help(
-                "write to shell COMMAND file name is $FILE (Currently not implemented for Windows)",
+                    "write to shell COMMAND; file name is $FILE (Currently not implemented for Windows)",
-            ),
+                ),
         )
         .arg(
             Arg::new(OPT_ELIDE_EMPTY_FILES)
@@ -162,7 +164,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(ARG_INPUT)
                 .takes_value(true)
                 .default_value("-")
-                .index(1),
+                .index(1)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(ARG_PREFIX)

src/uu/stat/src/stat.rs

@@ -1043,6 +1043,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .multiple_occurrences(true)
                 .takes_value(true)
                 .allow_invalid_utf8(true)
-                .min_values(1),
+                .min_values(1)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }

src/uu/stdbuf/src/stdbuf.rs

@@ -232,6 +232,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .multiple_occurrences(true)
                 .takes_value(true)
                 .hide(true)
-                .required(true),
+                .required(true)
+                .value_hint(clap::ValueHint::CommandName),
         )
 }

src/uu/sum/src/sum.rs

@@ -150,7 +150,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .multiple_occurrences(true)
-                .hide(true),
+                .hide(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::BSD_COMPATIBLE)

src/uu/sync/src/sync.rs

@@ -217,7 +217,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(ARG_FILES)
                 .multiple_occurrences(true)
-                .takes_value(true),
+                .takes_value(true)
+                .value_hint(clap::ValueHint::AnyPath),
         )
 }
 

src/uu/tac/src/tac.rs

@@ -91,7 +91,8 @@ pub fn uu_app<'a>() -> Command<'a> {
         .arg(
             Arg::new(options::FILE)
                 .hide(true)
-                .multiple_occurrences(true),
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/tail/src/tail.rs

@@ -351,7 +351,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::ARG_FILES)
                 .multiple_occurrences(true)
                 .takes_value(true)
-                .min_values(1),
+                .min_values(1)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/tee/src/tee.rs

@@ -74,7 +74,11 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .short('i')
                 .help("ignore interrupt signals (ignored on non-Unix platforms)"),
         )
-        .arg(Arg::new(options::FILE).multiple_occurrences(true))
+        .arg(
+            Arg::new(options::FILE)
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath),
+        )
 }
 
 #[cfg(unix)]

src/uu/timeout/src/timeout.rs

@@ -170,6 +170,7 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .index(2)
                 .required(true)
                 .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::CommandName)
         )
         .trailing_var_arg(true)
         .infer_long_args(true)

src/uu/touch/src/touch.rs

@@ -219,7 +219,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .long(options::sources::REFERENCE)
                 .help("use this file's times instead of the current time")
                 .value_name("FILE")
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::AnyPath),
         )
         .arg(
             Arg::new(options::TIME)
@@ -238,7 +239,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                 .multiple_occurrences(true)
                 .takes_value(true)
                 .min_values(1)
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::AnyPath),
         )
         .group(ArgGroup::new(options::SOURCES).args(&[
             options::sources::CURRENT,

src/uu/tr/src/tr.rs

@@ -143,7 +143,6 @@ pub fn uu_app<'a>() -> Command<'a> {
         .about(ABOUT)
         .override_usage(format_usage(USAGE))
         .infer_long_args(true)
-        .infer_long_args(true)
         .arg(
             Arg::new(options::COMPLEMENT)
                 .visible_short_alias('C')

src/uu/truncate/src/truncate.rs

@@ -162,6 +162,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             .required_unless_present(options::SIZE)
             .help("base the size of each file on the size of RFILE")
             .value_name("RFILE")
+            .value_hint(clap::ValueHint::FilePath)
         )
         .arg(
             Arg::new(options::SIZE)
@@ -176,7 +177,8 @@ pub fn uu_app<'a>() -> Command<'a> {
              .multiple_occurrences(true)
              .takes_value(true)
              .required(true)
-             .min_values(1))
+             .min_values(1)
+             .value_hint(clap::ValueHint::FilePath))
 }
 
 /// Truncate the named file to the specified size.

src/uu/tsort/src/tsort.rs

@@ -99,7 +99,12 @@ pub fn uu_app<'a>() -> Command<'a> {
         .override_usage(format_usage(USAGE))
         .about(SUMMARY)
         .infer_long_args(true)
-        .arg(Arg::new(options::FILE).default_value("-").hide(true))
+        .arg(
+            Arg::new(options::FILE)
+                .default_value("-")
+                .hide(true)
+                .value_hint(clap::ValueHint::FilePath),
+        )
 }
 
 // We use String as a representation of node here

src/uu/unexpand/src/unexpand.rs

@@ -109,7 +109,12 @@ pub fn uu_app<'a>() -> Command<'a> {
         .override_usage(format_usage(USAGE))
         .about(SUMMARY)
         .infer_long_args(true)
-        .arg(Arg::new(options::FILE).hide(true).multiple_occurrences(true))
+        .arg(
+            Arg::new(options::FILE)
+                .hide(true)
+                .multiple_occurrences(true)
+                .value_hint(clap::ValueHint::FilePath)
+        )
         .arg(
             Arg::new(options::ALL)
                 .short('a')

src/uu/uniq/src/uniq.rs

@@ -392,7 +392,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(ARG_FILES)
                 .multiple_occurrences(true)
                 .takes_value(true)
-                .max_values(2),
+                .max_values(2)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/unlink/src/unlink.rs

@@ -36,6 +36,7 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(OPT_PATH)
                 .required(true)
                 .hide(true)
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::AnyPath),
         )
 }

src/uu/users/src/users.rs

@@ -64,5 +64,10 @@ pub fn uu_app<'a>() -> Command<'a> {
         .about(ABOUT)
         .override_usage(format_usage(USAGE))
         .infer_long_args(true)
-        .arg(Arg::new(ARG_FILES).takes_value(true).max_values(1))
+        .arg(
+            Arg::new(ARG_FILES)
+                .takes_value(true)
+                .max_values(1)
+                .value_hint(clap::ValueHint::FilePath),
+        )
 }

src/uu/wc/src/wc.rs

@@ -210,7 +210,8 @@ pub fn uu_app<'a>() -> Command<'a> {
                     "read input from the files specified by
     NUL-terminated names in file F;
     If F is - then read names from standard input",
-                ),
+                )
+                .value_hint(clap::ValueHint::FilePath),
         )
         .arg(
             Arg::new(options::LINES)
@@ -234,7 +235,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(ARG_FILES)
                 .multiple_occurrences(true)
                 .takes_value(true)
-                .allow_invalid_utf8(true),
+                .allow_invalid_utf8(true)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uu/who/src/who.rs

@@ -250,7 +250,8 @@ pub fn uu_app<'a>() -> Command<'a> {
             Arg::new(options::FILE)
                 .takes_value(true)
                 .min_values(1)
-                .max_values(2),
+                .max_values(2)
+                .value_hint(clap::ValueHint::FilePath),
         )
 }
 

src/uucore/src/lib/features/perms.rs

@@ -456,6 +456,7 @@ pub fn chown_base<'a>(
     command = command.arg(
         Arg::new(options::ARG_FILES)
             .value_name(options::ARG_FILES)
+            .value_hint(clap::ValueHint::FilePath)
             .multiple_occurrences(true)
             .takes_value(true)
             .required(true)