Shell notifications

.bashrc

# apt install xdotool dateutils

# if "history" outputs a whitespace on the left, change -f3 to -f4

# insert at the bottom:

# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -t 5000 -i "$([ $? = 0 ] && echo terminal || echo error)" "$(dateutils.ddiff $(HISTTIMEFORMAT="%FT%T " history 1|cut -d\  -f3) $(date +%FT%T))" "$(HISTTIMEFORMAT= history 1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

PS1='$(if [ "$(xdotool getwindowfocus 2>/dev/null)" != "$WINDOWID" -a ! -z "$WINDOWID" ]; then alert; fi)'"$PS1"

if [ $TERM != "linux" ]; then
  export WINDOWID=$(xdotool getactivewindow 2>/dev/null)
  while [ $(xdotool getwindowpid $WINDOWID 2>/dev/null) != $PPID ]; do
    sleep 0.25
    export WINDOWID=$(xdotool getactivewindow 2>/dev/null)
  done
fi