A very simple time tracking tool for the command line.

.bashrc

# Time Tracking Tool
####################
# Simply writes dates/times/comments in a file.
# Each week has it's own file (e.g. ~/.ttt/2019-01.txt).
#
# ttt <comment>: add entry to current week's file
# tttt: output current week's file content with cat
# ttte: edit current week's file with vim
# tttp: pause

ttt() {
        mkdir -p ~/.ttt
        file="/home/$USER/.ttt/$(date +"%Y-%W").txt"
        echo `date '+%Y-%m-%d %H:%M'`" | "$* >> $file
        printf "Added time tracking entry:\n"
        tail -1 $file
}
alias tttt='cat ~/.ttt/$(date +"%Y-%W").txt'
alias ttte='vim ~/.ttt/$(date +"%Y-%W").txt'
alias tttp='ttt pause'