bashrc/.bashrc

#
# ~/.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
	get_hostname_colour() {
	  ord() {
	    LC_CTYPE=C printf '%d' "'$1"
	  }
	  hostname=$(hostnamectl --static)
	  sum=0
	  for l in $(fold -w1 <<< ${hostname[@]}); do sum=`expr $sum + $(ord $l)`; done
	  colour=`expr $sum % 16`
	  echo -n "\033[38;5;$(expr $sum % 16)m"
	}
	# Normal Colors
	DarkBlc='\[\033[38;5;0m\]'
	DarkRed='\[\033[38;5;1m\]'
	DarkGrn='\[\033[38;5;2m\]'
	DarkYlw='\[\033[38;5;3m\]'
	DarkBlu='\[\033[38;5;4m\]'
	DarkMag='\[\033[38;5;5m\]'
	DarkCyn='\[\033[38;5;6m\]'
	DarkWht='\[\033[38;5;7m\]'
	LghtBlc='\[\033[38;5;8m\]'
	LghtRed='\[\033[38;5;9m\]'
	LghtGrn='\[\033[38;5;10m\]'
	LghtYlw='\[\033[38;5;11m\]'
	LghtBlu='\[\033[38;5;12m\]'
	LghtMag='\[\033[38;5;13m\]'
	LghtCyn='\[\033[38;5;14m\]'
	LghtWht='\[\033[38;5;15m\]'

	# Background
	BgDarkBlc='\[\033[48;5;0m\]'
	BgDarkRed='\[\033[48;5;1m\]'
	BgDarkGrn='\[\033[48;5;2m\]'
	BgDarkYlw='\[\033[48;5;3m\]'
	BgDarkBlu='\[\033[48;5;4m\]'
	BgDarkMag='\[\033[48;5;5m\]'
	BgDarkCyn='\[\033[48;5;6m\]'
	BgDarkWht='\[\033[48;5;7m\]'
	BgLghtBlc='\[\033[48;5;8m\]'
	BgLghtRed='\[\033[48;5;9m\]'
	BgLghtGrn='\[\033[48;5;10m\]'
	BgLghtYlw='\[\033[48;5;11m\]'
	BgLghtBlu='\[\033[48;5;12m\]'
	BgLghtMag='\[\033[48;5;13m\]'
	BgLghtCyn='\[\033[48;5;14m\]'
	BgLghtWht='\[\033[48;5;15m\]'

	Reset='\[\033[0m\]'
	Bold='\[\033[1m\]'
	Invert='\[\033[7m\]'
	# 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 $(dircolors -b /etc/DIR_COLORS)
		fi
	fi
	TimeColour=$LghtYlw
	HostColour="\[$(get_hostname_colour)\]"
	if [[ ${EUID} == 0 ]]; then
	  UserColour=$DarkRed
	else
	  UserColour=$LghtGrn
	fi
	CDirColour=$DarkGrn
	PS1="$TimeColour[\t] $Bold$UserColour\u${HostColour}@\h $Reset$CDirColour\$PWD$Reset $Bold\n$UserColour\\$ ${Reset}"

	alias ls='ls --color=auto'
	alias ll='ls -alF'
	alias la='ll -A'
	alias l='ls -CF'
	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 cp="cp -i"                          # confirm before overwriting something
#alias df='df -h'                          # human-readable sizes
#alias free='free -m'                      # show sizes in MB
#alias np='nano -w PKGBUILD'
#alias more=less

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

# 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

# Enable history appending instead of overwriting.  #139609
shopt -s histappend

#
# # ex - archive extractor
# # 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      ;;
      *)           echo "'$1' cannot be extracted via ex()" ;;
    esac
  else
    echo "'$1' is not a valid file"
  fi
}
export PATH=$PATH:~/.local/bin:~/bin
export EDITOR=vim