Execute a shell script everyday at specific time [duplicate]

问题

I have a simple shell script that just checks the contents of a directory and if anything was added during the day makes a copy of it to a backup folder. I'd like to execute this script at the end of each day (let's assume at 23:55).

The system(Debian) which this scripts reside on it, is always on (kind of server)

How can I do that?

回答1:

You want to edit your crontab file using

crontab -e

Then you want to add

55 23 * * * COMMAND TO BE EXECUTED

for more info look at this

回答2:

To add a crontab job, type the following command at a UNIX/Linux shell prompt:

$ sudo crontab -e

Add the following line:

1 2 3 4 5 /path/to/script

where

1: Minutes (0-59)
2: Hours (0-23)
3: Days (1-31)
4: Month (1-12)
5: Day of the week(1-7)
/path/to/script - your own shell script

In your case it would be:

55 23 * * * /path/to/yourShellScript

回答3:

I'm anything, but a linux expert, but a quick Google search conjured up this:

watch -n <your time> <your command/script>

This should do the trick. For more information, check this out: http://www.linfo.org/watch.html

回答4:

sudo crontab -e

55 23 * * * some_shell_script.sh

回答5:

Check out the Cron task scheduler built in to Debian. Simply add an entry for your script to your crontab file (see: https://help.ubuntu.com/community/CronHowto).

来源：https://stackoverflow.com/questions/34753831/execute-a-shell-script-everyday-at-specific-time

标签

Linux

shell

cron

debian