Everywhere: Fix spelling mistakes

Base/usr/share/man/man1/chmod.md

@@ -21,7 +21,7 @@ The letters `[+-=]` controls which action will be taken: `+` sets the permission
 
 The letters `[rwx]` controls which permission will be changes: `r` is read, `w` is write and `x` is execute.
 
-A numeric mode is combination of 1 to 4 numbers. Omitted digits are assumet to be leading zeros. The first digit select the set user ID (4), set group ID (2) and restricted deletion / sticky (1) attributes. The second, third and fourth digit controls permissions of each user group: owner, owning group and others (not owner or owning group), respectively: read (4), write (2) and execute (1).
+A numeric mode is combination of 1 to 4 numbers. Omitted digits are assumed to be leading zeros. The first digit select the set user ID (4), set group ID (2) and restricted deletion / sticky (1) attributes. The second, third and fourth digit controls permissions of each user group: owner, owning group and others (not owner or owning group), respectively: read (4), write (2) and execute (1).
 
 ## Examples
 

Base/usr/share/man/man1/copy.md

@@ -23,6 +23,6 @@ $ copy [options...] [text...]
 # Copy some image to clipboard
 $ cat image.png | copy -t image/png
 
-# Place text 'foo' in clupboard
+# Place text 'foo' in clipboard
 $ copy foo
 ```

Base/usr/share/man/man7/Audio-subsystem.md

@@ -26,7 +26,7 @@ LibAudio is the baseline audio library that provides common audio abstractions,
 
 #### LibDSP
 
-LibDSP is the digital signal processing library. It provides structures for audio editing programs, such as tracks and clips, while both dealing with MIDI data and sample data. More important is the Processor system, which allows synthesizers, samplers, sequencers, effects, etc. to be written with a common interface and be combined into chains for unlimited DSP (and musical) potential. The ProcessorParameters provide an interface for changing processor parameters programatically or through a UI.
+LibDSP is the digital signal processing library. It provides structures for audio editing programs, such as tracks and clips, while both dealing with MIDI data and sample data. More important is the Processor system, which allows synthesizers, samplers, sequencers, effects, etc. to be written with a common interface and be combined into chains for unlimited DSP (and musical) potential. The ProcessorParameters provide an interface for changing processor parameters programmatically or through a UI.
 
 LibDSP was started to support development efforts in Piano, but it is intended as a general-purpose audio processing library, building on the groundwork from LibAudio. Therefore, users of LibDSP must be familiar with LibAudio classes and concepts, as they are used extensively in LibDSP.
 
@@ -46,7 +46,7 @@ Audio volume is more complicated than just multiplying a (digital or analog) aud
 
 For the SerenityOS audio system, the following applies: Userland applications and libraries that do their own volume changes need to be aware of the nature of volume. LibAudio provides utility functions for correctly handling volume, so these are to be used whenever applicable. For AudioServer, main and per-client volume is already handled correctly; to the outside, volume is linear between 0 and 1.
 
-For example: A program may set its client volume to 0.5 and the audio will be percieved as half as loud by a human. However, if the program wishes to change the volume beforehand, it needs to use logarithmic scaling, for example with LibAudio's built-in functionality.
+For example: A program may set its client volume to 0.5 and the audio will be perceived as half as loud by a human. However, if the program wishes to change the volume beforehand, it needs to use logarithmic scaling, for example with LibAudio's built-in functionality.
 
 ### Sample rate
 

Base/usr/share/man/man7/proc.md

@@ -36,11 +36,11 @@ them.
 
 ### `sys` directory
 
-This subdirectoy includes global settings of the kernel.
+This subdirectory includes global settings of the kernel.
 
 * **`caps_lock_to_ctrl`** - this node controls remapping of of caps lock to the Ctrl key.
 * **`kmalloc_stacks`** - this node controls whether to send information about kmalloc to debug log.
-* **`ubsan_is_deadly`** - this node controls the deadliness of the kernel undefinied behavior
+* **`ubsan_is_deadly`** - this node controls the deadliness of the kernel undefined behavior
 sanitizer errors.
 
 ### Per process entries

Base/usr/share/man/man8/groupadd.md

@@ -33,6 +33,6 @@ This program must be run as root.
 
 ```sh
 # groupadd -g 110 contributors
-# groupadd mainteners
+# groupadd maintainers
 ```