Regexp problem

[fabien]

Hi!

I would like to test a file and determine whether it is a Cshell, awk or other type of script. Scripts will often start with something like #!/bin/sh or #!/bin/nawk..

I did the following
set fd [open $file "r"]
gets $fd line
if [regexp {#!\/bin\/*awk} $line]
{
it's an awk or nawk or gnawk script
}
else

...

This does not seem to work. Does someone has some examples with regexp?

Thanks!

 

[AviaTraining]

One change you need to make in this example: add a "." before your "*". In your example, the "*" quantifier (0 or more), applied to the previous character, a "/". I'm assuming that you really wanted ".*" (0 or more of any character).

Also, you don't really need to escape your "/" characters, as they don't have special meaning to the regular expression parser. Which gives us:

[tt]regexp {#!/bin/.*awk} $line[/tt] - Ken Jones, President
Avia Training and Consulting

http://www.avia-training.com

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[fabien]

Thanks a lot it worked fine!