.bashrc customization

August 28, 2020 - Reading time: 5 minutes

Some customization done to my default .bashrc file. Most of them from DistroTube's .bashrc file on GitLab.

#
# ~/.bashrc
#

[[ $- != *i* ]] && return

colors() {
    local fgc bgc vals seq0

    printf "Color escapes are %s\n" '\e[${value};...;${value}m'
    printf "Values 30..37 are \e[33mforeground colors\e[m\n"
    printf "Values 40..47 are \e[43mbackground colors\e[m\n"
    printf "Value  1 gives a  \e[1mbold-faced look\e[m\n\n"

    # foreground colors
    for fgc in {30..37}; do
        # background colors
        for bgc in {40..47}; do
            fgc=${fgc#37} # white
            bgc=${bgc#40} # black

            vals="${fgc:+$fgc;}${bgc}"
            vals=${vals%%;}

            seq0="${vals:+\e[${vals}m}"
            printf "  %-9s" "${seq0:-(default)}"
            printf " ${seq0}TEXT\e[m"
            printf " \e[${vals:+${vals+$vals;}}1mBOLD\e[m"
        done
        echo; echo
    done
}

[ -r /usr/share/bash-completion/bash_completion ] && . /usr/share/bash-completion/bash_completion

# Change the window title of X terminals
case ${TERM} in
    xterm*|rxvt*|Eterm*|aterm|kterm|gnome*|interix|konsole*)
        PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/\~}\007"'
        ;;
    screen*)
        PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/\~}\033\\"'
        ;;
esac

use_color=true

# 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.  Use internal bash
# globbing instead of external grep binary.
safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
match_lhs=""
[[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
[[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"
[[ -z ${match_lhs}    ]] \
    && type -P dircolors >/dev/null \
    && match_lhs=$(dircolors --print-database)
[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true

if ${use_color} ; then
    # Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
    if type -P dircolors >/dev/null ; then
        if [[ -f ~/.dir_colors ]] ; then
            eval $(dircolors -b ~/.dir_colors)
        elif [[ -f /etc/DIR_COLORS ]] ; then
            eval $(dircolors -b /etc/DIR_COLORS)
        fi
    fi

    if [[ ${EUID} == 0 ]] ; then
        PS1='\[\033[01;31m\][\h\[\033[01;36m\] \W\[\033[01;31m\]]\$\[\033[00m\] '
    else
        PS1='\[\033[01;32m\][\u@\h\[\033[01;37m\] \W\[\033[01;32m\]]\$\[\033[00m\] '
    fi

    # alias ls='ls --color=auto'
    alias grep='grep --colour=auto'
    alias egrep='egrep --colour=auto'
    alias fgrep='fgrep --colour=auto'
else
    if [[ ${EUID} == 0 ]] ; then
        # show root@ when we don't have colors
        PS1='\u@\h \W \$ '
    else
        PS1='\u@\h \w \$ '
    fi
fi

unset use_color safe_term match_lhs sh

alias np='nano -w PKGBUILD'
alias more=less

xhost +local:root > /dev/null 2>&1

complete -cf sudo

# Bash won't get SIGWINCH if another process is in the foreground.
# Enable checkwinsize so that bash will check the terminal size when
# it regains control.  #65623
# http://cnswww.cns.cwru.edu/~chet/bash/FAQ (E11)
shopt -s checkwinsize

shopt -s expand_aliases

# export QT_SELECT=4

# 
#  ██████  ███    ███  █████  ███    ██  ██████  
# ██    ██ ████  ████ ██   ██ ████   ██ ██    ██ 
# ██    ██ ██ ████ ██ ███████ ██ ██  ██ ██    ██ 
# ██    ██ ██  ██  ██ ██   ██ ██  ██ ██ ██    ██ 
#  ██████  ██      ██ ██   ██ ██   ████  ██████  
#                                                

# Terminal language
export LANG=C

# Enable history appending instead of overwriting.  #139609
shopt -s histappend
# Do not wait for terminal closing to write to bash history file
PROMPT_COMMAND="history -a;$PROMPT_COMMAND"

# Ignore upper and lowercase when TAB completion
bind "set completion-ignore-case on"

### ARCHIVE EXTRACTION
# usage: ex <file>
ex ()
{
  if [ -f $1 ] ; then
    case $1 in
      *.tar.bz2)   tar xjf $1   ;;
      *.tar.gz)    tar xzf $1   ;;
      *.bz2)       bunzip2 $1   ;;
      *.rar)       unrar x $1   ;;
      *.gz)        gunzip $1    ;;
      *.tar)       tar xf $1    ;;
      *.tbz2)      tar xjf $1   ;;
      *.tgz)       tar xzf $1   ;;
      *.zip)       unzip $1     ;;
      *.Z)         uncompress $1;;
      *.7z)        7z x $1      ;;
      *.deb)       ar x $1      ;;
      *.tar.xz)    tar xf $1    ;;
      *.tar.zst)   unzstd $1    ;;      
      *)           echo "'$1' cannot be extracted via ex()" ;;
    esac
  else
    echo "'$1' is not a valid file"
  fi
}

# Changing "ls" to "exa"
alias ls='exa -al --icons --color=always --group-directories-first' # default ls to exa long format all files and dirs
alias la='exa -a --color=always --group-directories-first'  # all files and dirs
alias ll='exa -l --color=always --group-directories-first'  # long format
alias lt='exa -aT --color=always --group-directories-first' # tree listing for directory and all subdirectories
alias l.='exa -a | egrep "^\."' # all dot files

# Adding flags
alias df='df -h' # human-readable sizes
alias free='free -m' # show sizes in MB

# Confirm before overwriting something
alias cp="cp -i"
alias mv='mv -i'

# youtube-dl
alias yta="youtube-dl --extract-audio --audio-format best " # download best audio
alias ytmp3="youtube-dl --extract-audio --audio-format mp3 " # download mp3 audio
alias ytwav="youtube-dl --extract-audio --audio-format wav " # download wave audio
alias ytdl="youtube-dl -f bestvideo+bestaudio " # download best video and audio

alias spotdl="/home/omano/.local/bin/spotdl " # pip install spotdl
alias up="uptime" #

# GitHub bare repo https://articles.assembla.com/en/articles/1136998-how-to-add-a-new-remote-to-your-git-repo
alias cfg='/usr/bin/git --git-dir=/home/omano/.cfg/ --work-tree=/home/omano' # git command for the bare repo
alias cfgadd='/usr/bin/git --git-dir=/home/omano/.cfg/ --work-tree=/home/omano add' # add a file to the repo
alias cfgcommit='/usr/bin/git --git-dir=/home/omano/.cfg/ --work-tree=/home/omano commit -a -m "updating dotFiles"' # create a commit
alias cfgpush='/usr/bin/git --git-dir=/home/omano/.cfg/ --work-tree=/home/omano push --repo https://github.com/Zorrototo/dotFiles' # push commit

# to /etc/environment
# export EDITOR=/usr/bin/nano
# export DIFFPROG=/usr/bin/meld

# iotop current activity
alias topio="sudo iotop -o"

# quick pyhttp web server
alias pyhttp="python -m http.server"

alias ug="sudo update-grub"

#cornyjokes https://github.com/kz6fittycent/corny-jokes
alias cornyjokes="~/Scripts/corny-jokes/cornyjokes"
cornyjokes