🐧 Linux Commands Cheat Sheet :-

File & Directory Operations :-

• ls – List files in current directory.

• ls -l – Long listing format.

• ls -a – Show hidden files.

• cd <dir> – Change directory.

• pwd – Print current directory path.

• mkdir <dir> – Create new directory.

• rmdir <dir> – Remove empty directory.

• rm <file> – Remove file.

• rm -r <dir> – Remove directory with contents.

• cp <src> <dest> – Copy file/directory.

• mv <src> <dest> – Move/rename file/directory.

File Viewing & Editing :-

• cat <file> – View file contents.

• less <file> – View file with scroll.

• head <file> – First 10 lines of file.

• tail <file> – Last 10 lines of file.

• nano <file> – Edit file using nano.

• vim <file> – Edit file using vim.

File Searching :-

• find <dir> -name <filename> – Find file by name.

• grep "<text>" <file> – Search text in file.

• grep -r "<text>" <dir> – Recursively search in directory.

File Permissions :-

• chmod +x <file> – Make file executable.

• chmod 755 <file> – Set read/write/execute for owner, read/execute for others.

• chown user:group <file> – Change file ownership.

System Info :-

• uname -a – Kernel version.

• top – Real-time system processes.

• df -h – Disk usage.

• free -h – RAM usage.

• uptime – System uptime.

• whoami – Current user.

Package Management :-

• sudo apt update – Update package list.

• sudo apt upgrade – Upgrade packages.

• sudo apt install <package> – Install package.

• sudo apt remove <package> – Remove package.

🐙 Git Commands Cheat Sheet :-

Configuration :-

• git config --global user.name "Your Name" – Set Git username.

• git config --global user.email "you@example.com" – Set Git email.

• git config --list – List config.

Repository Management :-

• git init – Initialize new Git repo.

• git clone <url> – Clone remote repo.

• git status – Show repo status.

• git log – Show commit history.

• git diff – Show changes.

Staging & Committing :-

• git add <file> – Stage file.

• git add . – Stage all changes.

• git commit -m "message" – Commit with message.

• git commit -am "message" – Add & commit tracked files.

Branching :-

• git branch – List branches.

• git branch <name> – Create branch.

• git checkout <name> – Switch branch.

• git checkout -b <name> – Create and switch to new branch.

• git merge <branch> – Merge branch into current.

Remote Repositories :-

• git remote -v – Show remote URLs.

• git push origin <branch> – Push changes.

• git pull – Pull latest changes.

• git fetch – Download changes.

Undoing Changes :-

• git reset <file> – Unstage file.

• git checkout -- <file> – Discard file changes.

• git revert <commit> – Revert a commit.

• git reset --hard <commit> – Reset to commit.