The one that I always make sure to include is:

alias sudo='sudo '

This looks a bit confusing, but essentially, it makes all of the other aliases you define function correctly when used with sudo. The ALIASES section of the bash manual says:

If the last character of the alias value is a blank, then the next command word following the alias is also checked for alias expansion.

So this is just a nice way of making sure your commands are evaluated for aliases before being passed over to sudo, which ends up being pretty useful.

alias ls='ls -AlhF --color=auto'

NEVER terminal without it ;-)

I use fish, and with its command history and navigation, I’ve been able to skip a whole bunch of aliases.

trim off that pesky carriage return at the end of pbcopy on a mac.

alias copy="tr -d '\n' | pbcopy"

One I use all the time (but doesn’t work with hashed values in .known_hosts):

# SSH auto-completion based on entries in known_hosts.
if [[ -e ~/.ssh/known_hosts ]]; then
  complete -W "$(echo `cat ~/.ssh/known_hosts | cut -f 1 -d ' ' | sed -e s/,.*//g | uniq | grep -v "\["`;)" ssh
fi

This returns one random line from the file specified as first parameter:

function raffle() {
  head -$((${RANDOM} % `wc -l < $1` + 1)) $1 | tail -1
}

For OSX this one can be quite fun:

alias talk='cat - | while read cat; do say $cat; done'

And the most important one:

# get random BOFH excuse
function bofh() {
    telnet towel.blinkenlights.nl 666
}

Here are a few more of my favorite aliases.

Show/hide hidden files in the macOS Finder:

alias show="defaults write com.apple.finder AppleShowAllFiles -bool true && killall Finder"
alias hide="defaults write com.apple.finder AppleShowAllFiles -bool false && killall Finder"

Limit ping to five ECHO_REQUEST packets:

alias ping='ping -c 5'

Display drives and space in human readable format:

alias drives='df -h'

Run this one in ~/ to discover what folders are using the most space:

alias usage='du -h -d1'

Colorize grep output

alias grep='grep --color=auto -n'

Clear the screen (can’t live without this one!)

alias c='clear'

That’s all, folks!

A few docker shortcuts.

# Docker stuff
# Clean stopped containers
alias cco="docker ps -a | grep "Exited" | awk '{print $1}' | xargs docker rm"
# After that, clean unused images to reclaim disk space
alias cimg="docker images | grep none | awk '{print \$3}' | xargs docker rmi"
# Finally the regular stuff just to save typing.
alias dps="docker ps -a"
alias di="docker images"
alias drmi="docker rmi"
alias drm="docker rm"

A system notification to popup when a long shell task finishes:

# Display an "alert" after running commands.  Use like so:
#   sleep 10; alert "Done sleeping"
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

For starters, I’ve got some aliases set up for common typos, e.g:

alias cd..='cd ..'
alias cd~='cd ..'

This Ubuntu default is great for sending notifications when a long running command exits:

alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

I spend a lot of time building Debin packages with pbuilder. So these come in handy:

alias sid-update="pbuilder-dist sid update; if [ -f /usr/bin/notify-send ]; then alert; fi"
alias experimental-update="pbuilder-dist experimental update; if [ -f /usr/bin/notify-send ]; then alert; fi"
alias trusty-update="pbuilder-dist trusty update; if [ -f /usr/bin/notify-send ]; then alert; fi"
alias x-update="pbuilder-dist xenial update; if [ -f /usr/bin/notify-send ]; then alert; fi"
alias y-update="pbuilder-dist xenial update; if [ -f /usr/bin/notify-send ]; then alert; fi"

function sid-build () { pbuilder-dist sid build "$@"; \ 
    if [ -f /usr/bin/notify-send ]; then alert; fi }
function experimental-build () { pbuilder-dist experimental build "$@"; \ 
    if [ -f /usr/bin/notify-send ]; then alert; fi }
function trusty-build () { pbuilder-dist trusty build "$@"; \ 
    if [ -f /usr/bin/notify-send ]; then alert; fi }
function x-build () { pbuilder-dist xenial build "$@"; \ 
    if [ -f /usr/bin/notify-send ]; then alert; fi }
function y-build () { pbuilder-dist yakkety build "$@"; \ 
    if [ -f /usr/bin/notify-send ]; then alert; fi }

There’s a could things going on there:

• I test for the notify-send binary so I can use the same .bashrc file on my desktop or on a Droplet.
• Bash aliases can not take arguments, so I’m also using a few functions.

Excited to see what others are using!

I am a MySQL DBA. Here are some of my most used:

alias ..="cd .."
alias ...="cd ..; cd .."
alias ll="ls -l"
alias g="grep -i"
alias csv="paste -d, -s"
alias mycon="mysql -A -h"

• The ‘csv’ alias is used when I have a list of items that I want to change to a CSV. My most used case is a situation when I have a file that contains id’s, one per line, and I want to convert it to a MySQL IN list.

I use them for easy switching between projects, e.g.:

alias cx="cd ~/work/src/github.com/xmudrii/"
alias .x="cd ~/work/src/github.com/xmudrii/project && go install"

And starting servers:

alias api="nodemon ~/someproject-api"

Also easy ssh and vim

alias .ans="~/test/mng/ansible/"
alias ish="ssh ip"
alias dsh=dssh
alias v="vim"
alias .v=vimproject

dssh() {
    doctl compute ssh $1
}

vimproject() {
    vim ~/work/src/github.com/xmudrii/caffebar-comm/$1
}

Also this thread give me some very nice ideas, thanks for sharing! :)

I use tmux a ton. So I have these:

alias tn='tmux new-session -s'                                # tmux new session
alias ta='tmux attach -t'                                     # tmux attach
alias tl='tmux ls'                                            # list
alias tk='tmux kill-session -s'                               # kill session name

And this for interactive terminals:

# ask for tmux but only if we're not in tmux
if [[ ! $TERM =~ screen ]]; then
  # list tmux sessions
  tmux list-sessions 2> /dev/null
  echo "want tmux?"
  read answer
  if [[ $answer == "y" ]]; then
    tmux && exit 0
  fi
fi

And since I tweak my configuration a lot, I have aliases for those:

alias ep='vim ~/.bash_profile'                                # edit bash_profile
alias ev='vim ~/.vim/vimrc_main'                              # edit shared vim conf
alias evv='vim ~/.vim/vundle'                                 # edit vim plugins
alias evp='vim ~/.vim/vimrc_private'                          # edit private vim settings
alias et='vim ~/.tmux.conf'                                   # edit tmux conf