There are a nearly unlimited number of tools that you might find useful when writing shell scripts. These are just a few of the more common ones. You can find out about the command-line tools that ship as part of Mac OS X by looking in the man pages, either online (Mac OS X Man Pages) or by using the man command on the command line.
For help finding a command to perform a particular task, you can either search the online version of the man pages or use the apropos command on the command line.
Happy scripting!
Last updated: 2008-04-08