> life-changing

For further life-changing experience... add aliases to .bash_aliases

    alias gph='history | grep --colour -i '
    alias gpc='grep --colour -Hin '
    #if gnu time is installed
    alias timef='/usr/bin/time -f "tm %E , cpu %P , mem %M" '

I've got many like these I copied from various people over the years.

One I came up and that I use all the time:

    alias wl='wc -l'