Variable substitution (stupid noob) question in tcsh

King of Men · 12-02-2005, 05:16 PM

I have a bunch of files whose names are of the format runXon, where X is a number between 1 and 4. I would like to write a script that refers to one of these sets at a time, so that I can set a variable RunNumber and do this :

set allfiles = `ls run$RunNumberon`

However, the shell very reasonably complains that RunNumberon is not defined. How can I tell it that the variable name ends before 'on'? I'm sure this is pretty trivial, but I can't find it in my manual.

paulsm4 · 12-02-2005, 05:40 PM

i=one
j=run${i}on

bigrigdriver · 12-02-2005, 05:44 PM

You would have to include a sed or awk expression to parse the filename, looking for the number. If both methods, you would probably have to use characterlists [1..4] to select filenames with a number in that range.

If you don't have them, download Effective Awk Progamming and Awk Users Manual. They include examples of commands to do a great many things. You could probably work it out from that.

King of Men · 12-02-2005, 06:26 PM

Thank you Paul, I knew it had to be something simple.

eddiebaby1023 · 12-04-2005, 09:12 AM

Quote:

Originally Posted by bigrigdriver

You would have to include a sed or awk expression to parse the filename, looking for the number. If both methods, you would probably have to use characterlists [1..4] to select filenames with a number in that range.

Blimey, your scripts must be awesomely complicated.