There are two ways to perform a “is it a weekday” logic in shell scripts. One way is to use cron. The other is to get the day of week from the date command.
To run a shell script every weekday via cron, set the “day of week” field to “1-5” (0 is Sunday).
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0 8 * * 1-5 /path/to/weekday-script |
The above crontab entry will run the script every weekday at 8am.
The other method is to add some logic in the script to determine if the current day is a weekday.
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#!/bin/sh # get day of week day=`date +%u` # reset weekday indicator flag weekday=0 # if day of week is between 1 to 5, then it's a weekday [ $day -le 5 ] && weekday=1 # exit if not weekday [ $weekday -ne 1 ] && exit 0 # enter commands to be executed on weekdays here # ... |
On Bash 4.2 and above, you can use the builtin printf command to determine the day of the week.
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$ echo $BASH_VERSION 4.2.25(1)-release $ (( $(printf '%(%u)T' -1) <= 5 )) && echo weekday weekday |
Mohamed Ibrahim
ibrahim = { interested_in(unix, linux, android, open_source, reverse_engineering); coding(c, shell, php, python, java, javascript, nodejs, react); plays_on(xbox, ps4); linux_desktop_user(true); }
