How to schedule a job in unix without crontab command?

Question

I would like to schedule a URL load balancer check job without crontab command as the crontab usage is blocked for me. I tried to run the every 1 hour but it is consuming more resources. Is there any other efficient way to schedule a job without using a crontab command?

Solution

Another command that is used for scheduling commands is at. Here's a link to the man page.

For example, if you want to run a command at a given time, you can do

at 4pm /path/to/my/command

Comments

[twalberg]

And then to simulate cron, have the last line of your /path/to/my/command resubmit itself via at for the next run...

[Alexej Magura]

@bstamour What if we can't use at either?