Essential Bash Shell Shortcuts and Productivity Tips

Introduction

Mastering Bash shortcuts transforms the terminal from a place you type slowly into a place you work fast. These shortcuts are built into GNU Readline — the library that powers Bash’s line editing — and work in any Readline-enabled program (Python REPL, psql, irb, etc.).

Cursor Movement

Stop tapping arrow keys one character at a time:

Shortcut	Action
`Ctrl+A`	Move to beginning of line
`Ctrl+E`	Move to end of line
`Alt+B`	Move back one word
`Alt+F`	Move forward one word
`Ctrl+XX`	Toggle between current position and beginning of line

# Example: you typed a long command and need to fix the beginning
$ sudo apt install nginx curl wget vim git  # cursor at end
# Ctrl+A → cursor jumps to beginning
# Alt+F → jump word by word to find the typo

Editing

Shortcut	Action
`Ctrl+U`	Cut from cursor to beginning of line
`Ctrl+K`	Cut from cursor to end of line
`Ctrl+W`	Cut the word before the cursor
`Alt+D`	Cut the word after the cursor
`Ctrl+Y`	Paste (yank) the last cut text
`Ctrl+_`	Undo last edit
`Ctrl+T`	Swap current character with previous
`Alt+T`	Swap current word with previous
`Alt+U`	Uppercase from cursor to end of word
`Alt+L`	Lowercase from cursor to end of word
`Alt+C`	Capitalize current word

# Ctrl+W is incredibly useful for fixing typos
$ git comit -m "fix bug"
#       ↑ cursor here, Ctrl+W deletes "comit", type "commit"

# Ctrl+U + Ctrl+Y: cut and paste the whole line
$ sudo very-long-command --with --many --flags
# Ctrl+U cuts everything, type "time ", Ctrl+Y pastes it back
$ time sudo very-long-command --with --many --flags

Command History

Shortcut	Action
`Ctrl+R`	Reverse search through history
`Ctrl+S`	Forward search through history
`Ctrl+P`	Previous command (same as Up arrow)
`Ctrl+N`	Next command (same as Down arrow)
`Ctrl+G`	Cancel history search
`!!`	Repeat last command
`!$`	Last argument of previous command
`!*`	All arguments of previous command
`!string`	Last command starting with “string”
`!?string`	Last command containing “string”
`^old^new`	Replace “old” with “new” in last command

# Ctrl+R is the most powerful history shortcut
$ [Ctrl+R]
(reverse-i-search)`': _
# Type any part of a previous command to find it
(reverse-i-search)`docker': docker run -it ubuntu bash

# !! — repeat last command (great for sudo)
$ apt update
Permission denied
$ sudo !!
$ sudo apt update

# !$ — reuse last argument
$ mkdir -p /very/long/path/to/directory
$ cd !$
# cd /very/long/path/to/directory

# ^old^new — fix a typo in the last command
$ git push origin mian
$ ^mian^main
# git push origin main

History Configuration

Add to ~/.bashrc for better history:

# Larger history
export HISTSIZE=10000
export HISTFILESIZE=20000

# Don't save duplicates or commands starting with space
export HISTCONTROL=ignoreboth

# Append to history instead of overwriting
shopt -s histappend

# Save timestamp with each command
export HISTTIMEFORMAT="%F %T "

# Immediately write to history file
export PROMPT_COMMAND="history -a; $PROMPT_COMMAND"

Process Control

Shortcut	Action
`Ctrl+C`	Kill foreground process (SIGINT)
`Ctrl+Z`	Suspend foreground process (SIGTSTP)
`Ctrl+D`	Send EOF / exit shell
`Ctrl+L`	Clear screen (same as `clear`)
`Ctrl+S`	Pause terminal output (XOFF)
`Ctrl+Q`	Resume terminal output (XON)

# Ctrl+Z + bg: run a process in the background
$ vim large-file.txt
[Ctrl+Z]
[1]+  Stopped    vim large-file.txt
$ bg
[1]+ vim large-file.txt &

# fg: bring back to foreground
$ fg

# jobs: list background jobs
$ jobs
[1]+  Running    vim large-file.txt &

Tab Completion

Tab completion is one of Bash’s most powerful features:

# Complete commands
$ git [Tab][Tab]
add    bisect  branch  checkout  clone  commit  ...

# Complete file paths
$ cat /etc/ssh/[Tab]
ssh_config  sshd_config  ssh_host_rsa_key ...

# Complete variables
$ echo $HO[Tab]
$HOME  $HOSTNAME

# Install bash-completion for enhanced completions
sudo apt install bash-completion
# Then add to ~/.bashrc:
source /etc/bash_completion

Useful Shell Tricks

Brace Expansion

# Create multiple directories at once
mkdir -p project/{src,tests,docs,scripts}

# Create multiple files
touch app.{js,css,html}

# Backup a file
cp config.yaml{,.bak}  # creates config.yaml.bak

# Rename (move) a file
mv server.{js,ts}  # renames server.js to server.ts

Command Substitution

# Use output of a command as an argument
echo "Today is $(date +%Y-%m-%d)"
cd $(git rev-parse --show-toplevel)  # go to git root

# Assign to variable
current_branch=$(git branch --show-current)
echo "On branch: $current_branch"

Here Documents

# Write multi-line content to a file
cat > config.yaml << 'EOF'
database:
  host: localhost
  port: 5432
  name: myapp
EOF

# cd - : go to previous directory
$ cd /var/log
$ cd /etc/nginx
$ cd -
/var/log

# pushd/popd: directory stack
$ pushd /var/log
$ pushd /etc/nginx
$ dirs
/etc/nginx /var/log ~
$ popd
/var/log
$ popd
~

fzf: Fuzzy Finder (Game Changer)

fzf supercharges history search and file navigation:

# Install
sudo apt install fzf
# or
brew install fzf

# After installation, add to ~/.bashrc:
eval "$(fzf --bash)"

# Now Ctrl+R opens an interactive fuzzy history search
# Ctrl+T opens fuzzy file finder
# Alt+C opens fuzzy directory changer

Useful Aliases

Add to ~/.bashrc:

# Navigation
alias ..='cd ..'
alias ...='cd ../..'
alias ....='cd ../../..'
alias ~='cd ~'

# Listing
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'

# Safety
alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'

# Git shortcuts
alias gs='git status'
alias ga='git add'
alias gc='git commit'
alias gp='git push'
alias gl='git log --oneline --graph --decorate'

# Quick edit config files
alias bashrc='$EDITOR ~/.bashrc && source ~/.bashrc'
alias vimrc='$EDITOR ~/.vimrc'

# Reload shell config
alias reload='source ~/.bashrc'

Quick Reference Card

MOVEMENT          EDITING           HISTORY
Ctrl+A  line start   Ctrl+U  cut to start   Ctrl+R  reverse search
Ctrl+E  line end     Ctrl+K  cut to end     !!      last command
Alt+B   word back    Ctrl+W  cut word back  !$      last argument
Alt+F   word fwd     Ctrl+Y  paste          ^a^b    fix typo

PROCESS           COMPLETION        TRICKS
Ctrl+C  kill         Tab     complete       !!      sudo !!
Ctrl+Z  suspend      Tab Tab list all       !$      reuse arg
Ctrl+D  exit/EOF     Alt+?   show options   ^x^y    fix typo
Ctrl+L  clear screen