I need to change the name of a file within a script. For example I have two files. The first named scrnslc_0001 and the second scrnslc_0002. I want to change the name of the second to scrnslc_out. The appended number will change, and I won't know the file name in advance. If there were only one file I could use:
mv -f scrnsl* scrnslc_out
We're on AIX 5.2

Thanks

Admittedly I do not fully understand the problem but you can narrow your ls search from a '*' wildcard to specific numbers.

ls scrnslc_[0-9][0-9][0-9][0-9]

The ls command sorts alphabetically by default so if you're looking for the last file to move you can pipe the output of the above into a tail -1. The whole thing put together might look something like this:

mv `ls scrnslc_[0-9][0-9][0-9][0-9] | tail -1` scrnslc_out

If you want to save the scrnslc_#### files as they are, you could use the ln command in stead of mv.

I hope this is helpful.