Day 12 : Linux and Git-GitHub Cheat Sheet

This article aims to present a comprehensive cheat sheet encompassing essential Linux and Git-GitHub commands, along with explanations of their usage. Whether you are looking to navigate through directories, perform file operations, manage system resources, or collaborate on projects using Git-GitHub, this cheatsheet will serve as your go-to reference.

So, whether you’re a developer, a system administrator, or a DevOps enthusiast, keep this cheatsheet close at hand. It’s your gateway to mastering the essential Linux and Git-GitHub commands that will empower you to navigate the world of technology with confidence.

Let’s dive in and unlock the full potential of these indispensable tools together!

Linux Cheat Sheet: File Operations:

• ls: List files and directories in the current directory.
• cd: Change directory.
• pwd: Print the current working directory.
• mkdir: Create a new directory.
• cp: Copy files and directories.
• mv: Move or rename files and directories.
• rm: Remove files and directories.
• cat: Concatenate and display the contents of files.
• touch: Create an empty file or update the timestamp of an existing file.
• chmod: Change the permissions of files and directories.
• chown: Change the owner of files and directories.
• find: Search for files and directories.
• grep: Search for a specific pattern in files.
• tar: Archive files together into a tarball or extract files from a tarball.

System Operations:

• sudo: Execute a command as the superuser or another user.
• apt-get: Package management command for Debian-based systems.
• yum: Package management command for RPM-based systems.
• systemctl: Control system services (start, stop, restart, enable, disable).
• ps: Display information about active processes.
• top: Monitor system resources and running processes.
• df: Display disk space usage.
• free: Display memory usage.
• ifconfig: Display or configure network interfaces.
• ssh: Connect to a remote server using Secure Shell (SSH).
• ping: Send ICMP Echo Request packets to a network host.
• shutdown: Shut down or restart the system.

Text Processing:

• grep: Search for a specific pattern in files.
• sed: Stream editor for text manipulation.
• awk: Text processing tool for pattern scanning and processing.
• cut: Select portions of lines from files.
• sort: Sort lines of text files.
• uniq: Remove duplicate lines from a sorted file.
• wc: Count the number of lines, words, and characters in files.
• head: Display the beginning of a file.
• tail: Display the end of a file.

Git-GitHub Cheat Sheet: Repository Operations:

Repository Initialization:

• git init: Initialize a new Git repository.

Cloning and Creating Repositories:

• git clone [repository URL]: Clone a remote repository onto your local machine.
• git remote add [name] [repository URL]: Add a remote repository.
• git remote remove [name]: Remove a remote repository.
• git remote -v: List remote repositories.

Branches:

• git branch: List branches.
• git branch [branch name]: Create a new branch.
• git branch -d [branch name]: Delete a branch.
• git checkout [branch name]: Switch to a different branch.
• git checkout -b [branch name]: Create a new branch and switch to it.
• git merge [branch name]: Merge changes from a different branch.
• git rebase [branch name]: Reapply commits on top of another branch.

Staging and Committing Changes:

• git status: Show the current status of the repository.
• git add [file(s)]: Add file(s) to the staging area.
• git add .: Add all changes to the staging area.
• git commit -m "[commit message]": Commit staged changes.
• git commit --amend: Amend the last commit.

Pushing and Pulling:

• git push [remote] [branch]: Push commits to a remote repository.
• git push -u [remote] [branch]: Push commits to a remote repository and set upstream.
• git pull [remote] [branch]: Fetch changes from a remote repository and merge them into the current branch.
• git fetch [remote]: Fetch changes from a remote repository without merging.
• git branch -r: List remote branches.
• git branch -a: List all local and remote branches.

Collaborating and Remote Operations:

• git clone [repository URL]: Clone a remote repository onto your local machine.
• git fork: Create a copy of a remote repository under your GitHub account.
• git pull-request: Create a pull request to propose changes to a repository.
• git fetch origin: Fetch changes from the origin remote repository.
• git push origin [branch name]: Push commits to the origin remote repository.

Viewing History and Diffs:

• git log: Display commit history.
• git diff: Show changes between commits, branches, or files.
• git show [commit]: Show details of a specific commit.
• git blame [file]: Display who last modified each line of a file.

Undoing Changes:

• git checkout [file]: Discard changes in a file and restore it to the last committed version.
• git reset [commit]: Discard commits, moving the branch pointer to a previous commit.
• git revert [commit]: Create a new commit that undoes the changes introduced by a specific commit.
• git stash: Temporarily save changes that are not ready to be committed.

Remote Repository Management:

• git remote show [remote]: Display information about a remote repository.
• git remote prune [remote]: Remove remote branches that no longer exist on the