💻 Command Line Tips

📚 Documentation

Click a picture to open the full guide and its video:

Grep: Search text and code Grep Search text and code Awk: Fields, patterns and reports Awk Fields, patterns and reports Sed: The stream editor Sed The stream editor Tar: Bundle and compress files Tar Bundle and compress files Find: Find files by name, size and age Find Find files by name, size and age Oh My Posh: A themed prompt for any shell Oh My Posh A themed prompt for any shell Fish: The friendly interactive shell Fish The friendly interactive shell Bash: The default shell and scripting language Bash The default shell and scripting language Csh and Tcsh: The C shell family Csh and Tcsh The C shell family Zsh: Bash's powerful cousin Zsh Bash's powerful cousin Tmux: Sessions that survive disconnects Tmux Sessions that survive disconnects Linux Permissions: rwx, chmod, chown and umask Linux Permissions rwx, chmod, chown and umask Curl: Fetch URLs and debug HTTP Curl Fetch URLs and debug HTTP jq: Query and reshape JSON jq Query and reshape JSON yq: Query and edit YAML yq Query and edit YAML Command Line Handbook: Practical recipes for sysadmins Command Line Handbook Practical recipes for sysadmins Regex Cheat Sheet: Patterns for grep, sed, awk and more Regex Cheat Sheet Patterns for grep, sed, awk and more Performance Triage: The server is slow: first ten minutes Performance Triage The server is slow: first ten minutes

Watch the whole series on YouTube

🎬 Every guide has a short video.

Because who needs a GUI when you have ~/.bashrc?

There are 10 types of people in this world: those who understand binary and those who don't.

Survival Tips

🔥 The "I Didn't Mean That" Protection

Alias dangerous commands:

alias rm='rm -i'
alias mv='mv -i'
alias cp='cp -i'
🔍 Find Things Fast

fzf + fd + ripgrep = modern search trio. Your Ctrl+R will never be the same.

📜 History That Doesn't Suck
export HISTSIZE=10000
export HISTFILESIZE=20000
export HISTCONTROL=ignoredups:erasedups
shopt -s histappend
⚠️ Pro Tip: Never run a command you found on Stack Overflow without understanding it. Especially if it starts with curl | bash or rm -rf.
Why did the developer go broke?
Because he used up all his cache!

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