If you want to use bash’s printf formatting and store the value into a variable, you can use bash’s print’s -v flag as follows:

calc_elaspsed_time() { local SECONDS=$1 ((h=SECONDS/3600)) ((m=SECONDS%3600/60)) ((s=SECONDS%60)) printf -v ELAPSED_TIME “%02d:%02d:%02d” $h $m $s }

printf Command The built-in printf (print formatted) command prints a message to the screen. You […]