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base64: Implement -w/--wrap

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This is an option supported by coreutils, so we might as well support
it too.

It allows users to wrap their encoded output after the "column" value
they provide.

This commit also has the Markdown look more like what we see
when running ArgsParser::print_usage_markdown() (and it fixes some
of the examples).
This commit is contained in:
Kemal Zebari 2024-01-17 16:02:52 -08:00 • committed by Tim Flynn
parent 333454456b
commit 1d43bfc598
2 changed files with 27 additions and 4 deletions
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11
Base/usr/share/man/man1/base64.md
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@ -5,7 +5,7 @@ base64 - encode and decode to base64
## Synopsis
```**sh
$ base64 [-d|--decode] [file]
$ base64 [--decode] [--wrap column] [file]
```
## Description
@ -15,15 +15,18 @@ file is not specified or file is `-`.
## Options
* `-d|--decode`: Decode data
* `-d`, `--decode`: Decode data
* `-w column`, `--wrap column`: When encoding, wrap output after `column` characters
## Examples
```sh
# base64 encode the text 'foo'
# base64 encode the text 'A'
$ echo 'A' | base64
# base64 encode the content of foo.txt
# base64 encode the content of hi.txt
$ base64 hi.txt
# base64 encode the content of baz.txt and wrap after 4 columns
$ base64 -w 4 baz.txt
# base64 decode the text 'Zm9v'
$ echo 'Zm9v' | base64 -d
# base64 decode the content of foo.txt