Command to execute a script later

Question

I would like to execute a script after 12 hours. I could execute the script by remote access, but problem is I will be travelling by flight and may not have internet access. So I was wondering if there is some command to execute a script after few hours or at some specific time. e.g.,

cat my_script.sh
echo Hello World
run my_script.sh at 23:00 hr

Answer 1

Take a look at the man page for at

man at

There are lots of ways you can specify the time. You can do something like:

at -f my_script.sh 23:00

Answer 2

Use cron job in linux. like

0 */12 1 11 3 /bin/execute/my/script.sh >/dev/null 2>&1