Bash for Times to Use with Remind # Calculate number of minutes since start of day. # Use this with output of `remind -s` to calculate # task duration. GENERIC_DATE=$(date +'%b %d %Z %Y') # Example output: "Feb 23 EST 2020" START_OF_DAY_IN_SECONDS_SINCE_THE_EPOCH=$(date --date="$GENERIC_DATE" +'%s') # That date spec provides sste at midnight. NOW_IN_SECONDS_SINCE_THE_EPOCH=$(date +'%s') SECONDS_SINCE_START_OF_DAY=$(( $NOW_IN_SECONDS_SINCE_THE_EPOCH - $START_OF_DAY_IN_SECONDS_SINCE_THE_EPOCH )) MINUTES_SINCE_START_OF_DAY=$(( $SECONDS_SINCE_START_OF_DAY / 60 )) echo $MINUTES_SINCE_START_OF_DAY ################### START_OF_TASK=$(rem -s | tail -1 | cut -d" " -f5) echo $START_OF_TASK DURATION_OF_TASK_IN_MINUTES=$(( $MINUTES_SINCE_START_OF_DAY - $START_OF_TASK )) echo $DURATION_OF_TASK_IN_MINUTES ######### REMIND_START="REM $(date +'%d %b %Y AT %H:%M') MSG <some string>" echo $REMIND_START
