ansible/roles/common/templates/bash_aliases.j2

{# Updated: 2023-09-25 #}
# master: {{ common_mastering }}
# updated: {{ ansible_date_time.date }}

# -----------------------------------------------------------------------------
# BASH TWEAKS
# -----------------------------------------------------------------------------


# ------------------------------
# HISTORY
# ------------------------------

# Line wrap on window resize
shopt -s checkwinsize

# Enable history
set -o history

# Combine multiline commands into one in history
shopt -s cmdhist

# Disable completion when the input buffer is empty.  i.e. Hitting tab
# and waiting a long time for bash to expand all of $PATH.
shopt -s no_empty_cmd_completion

# Shorter history
export HISTCONTROL=ignoredups
export HISTIGNORE='&:ls:[bf]g:exit'

# big history
export HISTFILESIZE=20000
export HISTSIZE=10000
shopt -s histappend

# History completion
bind "'\e[A': history-search-backward"
bind "'\e[B': history-search-forward"


# ------------------------------
# COMPLETION
# ------------------------------

# Autocomplétion
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi

# bash completion
[ -r /usr/share/bash-completion/bash_completion   ] && . /usr/share/bash-completion/bash_completion
bind 'set completion-ignore-case on' # note: bind used instead of sticking these in .inputrc
bind 'set bell-style none' # no bell
bind 'set show-all-if-ambiguous On' # show list automatically, without double tab


# ------------------------------
# COLORS
# ------------------------------

# colors & char
# text normal colors
red='\e[0;31m'
blue='\e[0;34m'
cyan='\e[0;36m'
green='\e[0;32m'
yellow='\e[0;33m'
# text bright colors
bred='\e[0;91m'
bblue='\e[0;94m'
bcyan='\e[0;96m'
bgreen='\e[0;92m'
byellow='\e[0;93m'
bwhite='\e[0;97m'
# reset color
NC='\e[0m'

# Set colorful PS1 only on colorful terminals.
# dircolors --print-database uses its own built-in database
# instead of using /etc/DIR_COLORS.  Try to use the external file
# first to take advantage of user additions.
# We run dircolors directly due to its changes in file syntax and
# terminal name patching.
use_color=false
if type -P dircolors >/dev/null ; then
        # Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
        LS_COLORS=
        if [[ -f ~/.dir_colors ]] ; then
                eval "$(dircolors -b ~/.dir_colors)"
        elif [[ -f /etc/DIR_COLORS ]] ; then
                eval "$(dircolors -b /etc/DIR_COLORS)"
        else
                eval "$(dircolors -b)"
        fi
        # Note: We always evaluate the LS_COLORS setting even when it's the
        # default.  If it isn't set, then `ls` will only colorize by default
        # based on file attributes and ignore extensions (even the compiled
        # in defaults of dircolors). #583814
        if [[ -n ${LS_COLORS:+set} ]] ; then
                use_color=true
        else
                # Delete it if it's empty as it's useless in that case.
                unset LS_COLORS
        fi
else
        # Some systems (e.g. BSD & embedded) don't typically come with
        # dircolors so we need to hardcode some terminals in here.
        case ${TERM} in
        [aEkx]term*|rxvt*|gnome*|konsole*|screen|cons25|*color) use_color=true;;
        esac
fi

if ${use_color} ; then
        if [[ ${EUID} == 0 ]] ; then
                PS1+='\[\033[01;31m\]\h\[\033[01;34m\] \w \$\[\033[00m\] '
        else
                PS1+='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '
        fi

        #BSD#@export CLICOLOR=1
        #GNU#@alias ls='ls --color=auto'
        alias grep='grep --colour=auto'
        alias egrep='egrep --colour=auto'
        alias fgrep='fgrep --colour=auto'
else
        # show root@ when we don't have colors
        PS1+='\u@\h \w \$ '
fi

for sh in /etc/bash/bashrc.d/* ; do
        [[ -r ${sh} ]] && source '${sh}'
done

# Try to keep environment pollution down, EPA loves us.
unset use_color sh


# ------------------------------
# PROMPT
# ------------------------------

# Prompt
PS1='[\u@\h \W]\$ '
case ${TERM} in
  xterm*|rxvt*|Eterm|aterm|kterm|gnome*)
    PROMPT_COMMAND=${PROMPT_COMMAND:+$PROMPT_COMMAND; }"printf '\033]0;%s@%s:%s\007' '${USER}' '${HOSTNAME%%.*}' '${PWD/#$HOME/\~}'"

    ;;
  screen*)
    PROMPT_COMMAND=${PROMPT_COMMAND:+$PROMPT_COMMAND; }"printf '\033_%s@%s:%s\033\\' '${USER}' '${HOSTNAME%%.*}' '${PWD/#$HOME/\~}'"
    ;;
esac
if [ '$color_prompt' = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt

# Titre du terminal
# If this is an xterm set the title to user@host:dir
case '$TERM' in
xterm*|rxvt*)
    PS1='\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1'
    ;;
*)
    ;;
esac


# ------------------------------
# ALIASES
# ------------------------------

# Privileged access
if (( UID != 0 )); then
    alias sudo='sudo '
    alias scat='sudo cat'
    alias svim='sudoedit'
    alias root='sudo -i'
    alias reboot='sudo systemctl reboot'
    alias poweroff='sudo systemctl poweroff'
    alias update='sudo apt update'
    alias netctl='sudo netctl'
fi

## Safety features
alias cp='cp -i'
alias mv='mv -i'
alias rm='rm -I'                    # 'rm -i' prompts for every file

# btrfs cow
alias cp='cp -i --reflink=auto'

# safer alternative w/ timeout, not stored in history
alias rm=' timeout 3 rm -Iv --one-file-system'
alias ln='ln -i'
alias chown='chown --preserve-root'
alias chmod='chmod --preserve-root'
alias chgrp='chgrp --preserve-root'
alias cls=" echo -ne '\033c'"       # clear screen for real (it does not work in Terminology)

## Make Bash error tolerant
alias :q=' exit'
alias :Q=' exit'
alias :x=' exit'
alias cd..='cd ..'

# process using web
alias ports='lsof -i -n -P'

# make parent directory if needed
alias mkdir='mkdir -p'

# quit, exit & reboot
alias :q='exit'
alias oust="echo 'bye $USER...'; sleep 2s && systemctl poweroff"
alias comeback="echo 'be back right now...'; sleep 2s && systemctl reboot"

# Modified commands
alias diff='colordiff'              # requires colordiff package
alias grep='grep --color=auto'
alias more='less'
alias df='df -h'
alias du='du -c -h'
alias mkdir='mkdir -p -v'
alias nano='nano -w'
alias ping='ping -c 5'
alias dmesg='dmesg -HL'

## New commands
alias da="date '+%A, %B %d, %Y [%T]'"
alias du1='du --max-depth=1'
alias hist='history | grep'         # requires an argument
alias openports='ss --all --numeric --processes --ipv4 --ipv6'
alias pgg='ps -Af | grep'           # requires an argument
alias ..='cd ..'
alias x=exit

# changes directories
alias ..='cd ..'
alias ...='cd ../..'
alias ....='cd ../../..'
alias .....='cd ../../../..'
alias .3='...'
alias .4='....'
alias .5='.....'

# handy short cuts
alias h='history'
alias j='jobs -l'

# date /time
alias path='echo -e ${PATH//:/\\n}'
alias now="date +'%T'"
alias nowtime=now
alias nowdate="date +'%d-%m-%Y'"

## pass options to free ##
alias free='free -h'
alias meminfo='free -m -l -t'

## get top process eating memory
alias psmem='ps auxf | sort -nr -k 4'
alias psmem10='ps auxf | sort -nr -k 4 | head -10'

## get top process eating cpu ##
alias pscpu='ps auxf | sort -nr -k 3'
alias pscpu10='ps auxf | sort -nr -k 3 | head -10'

## Resume wget by default
alias wget='wget -c'

# better 'top'
alias top='htop'

# screen default resume
alias screen='screen -R'
alias sr='screen'

# listings
alias ll='ls -lha'
alias lo='ls -o'
alias lh='ls -lh'
alias la='ls -la'
alias sl='ls'
alias l='ls'
alias s='ls'
alias lt='ls -laptr' #oldest first sort
alias labc='ls -lap' #alphabetical sort

## ls
alias ls='ls -hFX --color=auto --group-directories-first'
alias lr='ls -RhFX --color=auto --group-directories-first'
alias ll='ls -lhFXa --color=auto --group-directories-first'
alias la='ll -AhFX --color=auto --group-directories-first'
alias lx='ll -BXhFX --color=auto --group-directories-first'                   # sort by extension
alias lz='ll -rShFX --color=auto --group-directories-first'                   # sort by size
alias lt='ll -rthFX --color=auto --group-directories-first'                   # sort by date
alias lm='la | more'

# Git related
alias gs='git status'
alias gc='git commit'
alias ga='git add'
alias gd='git diff'
alias gb='git branch'
alias gl='git log'
alias gsb='git show-branch'
alias gco='git checkout'
alias gg='git grep'
alias gk='gitk --all'
alias gr='git rebase'
alias gri='git rebase --interactive'
alias gcp='git cherry-pick'
alias grm='git rm'

# performances analysis
alias analyze='systemd-analyze'
alias blame='systemd-analyze blame'
alias criticalchain='systemd-analyze critical-chain'
alias plot='systemd-analyze plot > /tmp/boot.analysis.svg && chmod 0777 /tmp/boot.analysis.svg'

# systemctl
alias ssysctl='sudo systemctl'
alias status='ssysctl status'
alias running='ssysctl list-units'
alias failed='ssysctl --failed'
alias units='ssysctl list-unit-files'
alias start='ssysctl start'
alias stop='ssysctl stop'
alias restart='ssysctl restart'
alias reload='ssysctl reload'
alias status='ssysctl status'
alias enable='ssysctl enable'
alias disable='ssysctl disable'
alias activate='enable --now'
alias mask='ssysctl mask'
alias unmask='ssysctl unmask'
alias help='ssysctl help'
alias daemonreload='ssysctl daemon-reload'
alias reboot='ssysctl reboot'
alias poweroff='ssysctl poweroff'
alias suspend='ssysctl suspend'
alias hibernate='ssysctl hibernate'
alias sleep='ssysctl hybrid-sleep'
alias reenable='ssysctl reenable'
alias revert='ssysctl revert'
alias targets='running --type=target'
alias enabled='units |grep enabled'
alias disabled='units |grep disabled'
alias jobs='ssysctl list-jobs'

# journald
alias journal='sudo journalctl'
alias boot='journal -b'
alias pid='journal _PID='
alias follow='journal -f'
alias kernel='journal -k'
alias unit='journal -u'
alias jeca='journal -p err..alert'
alias jreload='reload systemd-journald.service'
alias jauth='journal SYSLOG_FACILITY=10'
alias since='journal --since'
alias today="journalsince 'yesterday'"
alias j1h="journalsince '60 minutes ago'"
alias j15m="journal --since '15 minutes ago'"
alias j30m="journal --since '30 minutes ago'"
alias kernelboot='journal -k -b -1'
alias boots='journal --list-boots'
alias entries20='journal -n 20'

# exports
export EDITOR='nano'
export BROWSER='surf'
export PAGER='most'

# path
export PATH="/usr/lib/colorgcc/bin/:$PATH"
export CCACHE_PATH='/usr/bin'
export CCACHE_DIR=/mnt/build
export BUILDDIR=/mnt/build

# vm
NPROC=$(nproc)