awk
|
The awk general-purpose text
processing language
|
basename
|
Strips extensions and directories from
filenames
|
cat
|
Displays and concatenates files
|
cmp
|
Compares binary files
|
cut
|
Extracts columns of lines
|
diff
|
Compares text files
|
dirname
|
Extracts the directory from a filename
|
echo
|
Prints text
|
ed
|
A classic line-based text editor
|
egrep
|
Extended grep
|
ex
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A newer line-based text editor
|
expr
|
Evaluates a mathematical expression
|
false
|
Returns a nonzero exit code
|
fmt
|
Breaks long lines and reformats text
|
grep
|
Searches for lines matching a regular
expression
|
groff
|
A multi-purpose typesetting utility
|
head
|
Displays the first lines of a file
|
ispell
|
A spelling checker
|
less
|
Displays a text file
|
more
|
Displays a text file
|
nroff
|
Formats roff documents for text display
|
patch
|
Incorporates changes into files; the opposite of diff
|
perl
|
A general-purpose scripting language
|
sed
|
A stream editor
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sort
|
Sorts lines in a file
|
split
|
Chops a file into pieces
|
tail
|
Displays the last lines of a file
|
tee
|
Duplicates a file stream
|
test
|
([) Checks a condition
|
tr
|
Translates (or substitutes) characters
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true
|
Returns an exit code of 0 (true)
|
uniq
|
Removes duplicate adjacent lines
|
vi
|
A visual full-screen editor
|
wc
|
Counts words, lines, and characters in a file
|
xargs
|
Executes a command repeatedly with arguments from the input
stream
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