a script that uses a couple of functions. We have seen the script before; it tests to see if a directory exists.
$ pg direc_check
!/b... ng functions from a function file
We have already seen how to call functions from the command line; the... ripts kicks off it can load these variables in to see if the user wants to change any of the defaults b
">" needs to be escaped within a [ ] construct.
See Example 27-11 for an application of this comparis... t the unquoted string alone within test brackets (see Example 7-6) normally works, however, this is an
