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alexandre-delaloy/bash-command-line-cheatsheet.txt

Last active March 16, 2023 12:25
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Bash Command Line Cheatsheet
Raw
bash-command-line-cheatsheet.txt
-----------------------------------------
| BASH COMMAND LINE CHEATSHEET |
| |
| by Alexandre Delaloy - @blyndusk |
-----------------------------------------
Getting help:
----
man [command] Read the manual for a given command
[command] -h || --help Ask the command for help
e.g.
man chmod
chmod -h
--------------------------------------------------------------------------------------------------
Listing directory content
----
ls [PATH] List the files or directory at [PATH]
--
ls [PATH1] [PATH2] List both [PATH1] and [PATH2]
ls -l [PATH] Long listing format
ls -a [PATH] Show all files, including hidden files
ls -R [PATH] Recursive listing
ls -F [PATH] Show type of each file
(/=directory, *=executable, @=link)
e.g.
ls ~/foo
ls -la $HOME
--------------------------------------------------------------------------------------------------
Changing directories
----
cd [DIR] Change into the directory at [DIR]
cd Change into your home directory ($HOME)
cd .. Go to the parent directory
cd ../../ n times Go up n parent directories
(cd ../../../ => 3 parents directories)
cd - Change to the previous directory
pwd Return working directory fullname
e.g.
cd ~/foo
cd ../../../../
--------------------------------------------------------------------------------------------------
Creating files and directories
----
mkdir [DIR] Create a directory at [DIR]
--
mkdir -p [DIR] Create one or more parents directories if needed
(mkdir -p foo/bar => 2 parents directories)
touch [NEWFILE] Create a [NEWFILE] if doesn't exist
e.g.
mkdir -p ~/foo/bar
touch ~/foo/bar/foobar.txt
--------------------------------------------------------------------------------------------------
Removing files and directories
----
rmdir [DIR] Remove directory at [DIR] (it must be empty)
rm [FILE] Remove a file
--
rm -r [DIR] Recursively remove all files, subdirectories and
files into subdirectories starting at [DIR]
rm -i [FILE/DIR] Run in interactive mode
rm -f [FILE/DIR] Remove regardless of the [FILE/DIR]'s permissions
e.g.
rm -f ~/foo/bar/foobar.txt
rm -ri ~/foo/bar
rm -rf ~/foo
--------------------------------------------------------------------------------------------------
Copying, moving and renaming files and directories
----
[cp/mv] [FILE] [DEST_DIR] Copy/Move [FILE] to [DEST_DIR]
--
cp -r [SRC_DIR] [DEST_DR] Copy [SRC_DIR] recursively to [DEST_DIR]
(directory, files, subdir and subfiles)
mv [OLDFILE] [NEWFILE] Rename [OLDFILE] to [NEWFILE]
e.g.
[cp/mv] foo.txt ~/bar/
cp -r ~/foo/ ~/bar/
mv foo.txt bar.txt
--------------------------------------------------------------------------------------------------
Viewing files
----
cat [FILE] Display the content of [FILE]
less [FILE] Browse throught a text [FILE]
head [FILE] Output the top portion of [FILE]
tail [FILE] Output the bottom of [FILE]
--
cat -n [FILE] Display with line numbers output
[head/tail] -n [FILE] Display n number of lines (10 by default)
e.g.
cat -n foo.txt
head -6 foo.txt
--------------------------------------------------------------------------------------------------
Editing files
----
vim [FILE] Use the vim editor to view and modify [FILE]
nano [FILE] Use the nano editor to view and modify [FILE]
e.g.
vim foo.txt
nano bar.txt
--------------------------------------------------------------------------------------------------
Sorting files content
----
sort [FILE] Sort or merge lines of text and binary files
--
sort -r [FILE] Sort in reverse order
sort -u [FILE] Suppress all lines that is equal to another
sort -o [OUTPUT_FILE] [FILE] Print the output to [OUTPUT_FILE]
sort -k n [FILE] Sort by key (n is the field number)
e.g.
sort -ru -o bar.txt foo.txt
sort -k 2 foo.txt
--------------------------------------------------------------------------------------------------
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