Adding 'at' command to Raspbian

Question

I want to be able to use the at command to run programs outside of cron. I see that it is missing from the listed BASH commands.

How can I add it?

Answer 1

It shouldn't be much more than:

sudo apt-get install at

Answer 2

In general, when looking for a package to install when you know the name of the package - or part of the name, you can try this:

apt-cache search XXXX

Where "XXXX" is the package name as best you know it.

In the case of at this isn't particularly helpful because many packages will match. But if you know the complete name of the package, you can proceed as follows:

sudo apt-get update 
sudo apt-get upgrade
sudo apt-get install at

The update and upgrade steps will help ensure you get the currently released packages if you've not installed any packages recently.