Cheatsheet including important commands used in Linux and Git
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pwd
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shows Present working directory
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cd
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changes Directory
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cd ~
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changes directory to home
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cd ..
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goes one directory behind
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ls
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shows list of directories and files in current working directory
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ls -l
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shows list of directories in long format
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ls -a
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shows all files and directoies including hidden ones
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ls <directory name>
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shows list of directories and files in specified directory
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ls -lS > file.txt
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saves list in long form to txt file in pwd
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cat
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Echoes input
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cat <textfilename>
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Displays content of file or files
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cat > test.txt
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Creates a file named test.txt and records data given below
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cat > test.txt (again)
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Overwrites previous data
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cat >> test.txt
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appends data
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cat [textfile1] [textfile2] > [new or existing file]
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concatenates textfile1 and textfile2 and saves to new file
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mkdir [directoryname]
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creates a directory
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mkdir -p [dir]/[subdir]
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creates a path of directories
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mkdir -p [dir]/{subdir1,subdir2,subdir3}
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Create multiple subdirectories in one directory
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rmdir
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Remove directory
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rmdir -p a/b/c/d/e
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removes entire directory path
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rmdir pv (verbose)
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Shows how removal will work
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rm
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removes file
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cp [file1.txt] [dirname]
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copies file1.txt to the specified directory
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cp -r
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copies recursively
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man <any command>
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Displays manual for that command
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mv [file1.txt] [dirname]
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move file1.txt from current dir to specified directory
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touch <filename>
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creates file quickly
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touch <existingfile>
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updates time stamp of file
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nano
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opens file editor
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vim
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opens vim file editor
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sudo
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executes command as superuser
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top
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displays processes running on the computer
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s (in top menu)
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changes refresh rate
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i (in top menu)
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shows idle processes
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k (in top menu)
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kills process using PID
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pid of
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finds process id of process using name
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kill [PID]
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kills process for given process id
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kill -9 [PID]
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Force stop
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ps -ux
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Gives list of running processes and finds PIDs
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ps -aux
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Gives list of all running processes and finds PIDs
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ps -U [user]
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displays list of running processes for given user
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ps -C
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to know the instances of that program
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echo
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displays whatever we type (useful in bash scripting)
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chmod
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Utility to change permission of the file
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wget
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get(just reads)
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sudo apt -get update
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updates system
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exit
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Exits superuser or terminal
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ssh -i ./[file] [username]@[ip]
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establishes ssh connection
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vmstat
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prints a summary of key server statistics, processes, cpu, disk space
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apt-get install git
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installs git on linux
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git init
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initializes empty git repository in folder
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git add <file name>
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stages file for commitment
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git add .
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stages all files for commitment
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git commit -m "<note>"
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commits staged files
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git status
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shows status of files
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git branch
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shows all branches
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git branch <branch name>
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creates new branch
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git switch <branch name>
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switches branch
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git checkout <branch name>
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switches branch
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git merge <branch name>
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merges the specified branch with current branch
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git rebase <branch name>
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merges the specified branch with current branch and adds commit ahead of present commits
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git stash
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used to store changes when we want to move to a different directory without committing current changes
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git push -u origin master
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pushing changes to central github repository
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git --help
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shows all commands
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git restore --<staged file name>
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untrack file
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