Cheat Sheet for Linux & Git

Linux Commands

Command	Description
pwd	Displays the present working directory
ls	Lists all files and directories in the current directory
ls -a	Displays all files and directories, including hidden ones
ls -l	Displays detailed information about files and directories
mkdir <directory_name>	Creates a new directory
mkdir -p A/B/C/D	Creates a nested directory structure
rmdir <directory_name>	Removes an empty directory
rm -rf <directory_name>	Removes a directory and all its contents
rm <file_name>	Removes a file
cd <path>	Changes the working directory
touch <file_name>	Creates an empty file
cp <source_path> <destination_path>	Copies a file
mv <source_path> <destination_path>	Moves a file
echo <message> > <file_name>	Writes text to a file
cat <file_name>	Displays the contents of a file
history	Displays a list of previously executed commands
grep <search_string> <file_name>	Searches for a specific string in a file
head	Displays the first few lines of a file
tail	Displays the last few lines of a file
df -H	Shows disk usage information

Permission	Description
chmod <permission> <file_name>	Changes the permissions of a file or directory
0	No permissions
4	Read permission
2	Write permission
1	Execute permission
r	Read permission
w	Write permission
x	Execute permission
u	User
g	Group
o	Other

Command	Description
sudo useradd <user_name>	Creates a new user
sudo passwd <user_name>	Sets a password for a user
sudo usermod <user_name>	Modifies a user's information
sudo userdel <user_name>	Deletes a user
sudo groupadd <group_name>	Creates a new group

Command	Description
git init	Initializes a new Git repository
git clone <repository_url>	Clones an existing Git repository
git add <file_name>	Adds a file to the staging area
git add .	Stages all files in the current directory
git commit -m <message>	Commits the staged changes with a message
git status	Displays the status of the Git repository

Command	Description
git branch	Lists all branches
git branch <branch_name>	Creates a new branch
git checkout <branch_name>	Switches to a specific branch
git checkout -b <branch_name>	Creates and switches to a new branch
git checkout -d <branch_name>	Deletes a branc

Command	Description
git remote -v	Lists all remote repositories
git remote add origin <remote_git_url>	Adds a remote repository
git remote remove origin	Removes a remote repository
git push origin <branch_name>	Pushes local changes to a remote repository
git pull origin <branch_name>	Pulls remote changes to the local repository
git fetch	Fetches all remote branches
git log	Displays commit history

Command	Description
git config --global user.name <your_username>	Sets the author name for commits
git config --global user.email <your_email>	Sets the author email for commits

Command	Description
git merge <branch_name>	Merges the specified branch into the current branch.
git cherry-pick <commit_id>	Selectively merges a specific commit from another branch into the current branch.
git revert <commit_id>	Undoes a specific commit without affecting subsequent commits.
git reset <commit_id>	Moves the HEAD pointer back to the specified commit, discarding any changes made after that commit.
git rebase <other_branch_name>	Rewrites the history of the current branch by applying its commits on top of the specified branch's history.
git stash	Temporarily saves modified and staged changes.
git stash list	Displays a list of stashed changes.
git stash pop	Applies the topmost stashed change to the working directory and removes it from the stash.