Dagnabbit I overslept! I use BitBar on my macbook to display the epoch second on my menu bar in a format like this: { 1,600,003,345 } The script to do that is

Dagnabbit I overslept! I use BitBar on my macbook to display the epoch second on my menu bar in a format like this: { 1,600,003,345 } The script to do that is: EPOCH=$(/bin/date +%s | /usr/local/bin/sed ':a;s/\B[0-9]\{3\}\>/,&/;ta') echo "{" "${EPOCH}" "}" Separating the epoch into thousands was done with the help of this Stackoverflow question: https://unix.stackexchange.com/questions/113795/add-thousands-separator-in-a-number https://unix.stackexchange.com/questions/113795/add-thousand... EDIT: This is a much simpler way of writing it, thanks to GNU Coreutils' "numfmt" EPOCH=$(/bin/date +%s | /usr/bin/numfmt --grouping)