Filename Expansion

Filename Expansion

[Toshi Isogai]

I am writing a script to search files in a certain pattern
and manipulate them. Something like:

	for i in *.vhd; do
 		# do some operation on $i here
	done
	# do other stuff


This works fine if there is at least one file matches the
pattern. Otherwise, it exits with an error and 'other stuff'
never gets done.

How can I make it so that it will just skip 'for' loop if
there aren't any files matches the pattern?


Toshi Isogai   ^[$@0k3-MxL@^[(J

Re: Filename Expansion

[Zefram]

>Toshi Isogai wrote:
>This works fine if there is at least one file matches the
>pattern. Otherwise, it exits with an error and 'other stuff'
>never gets done.
>
>How can I make it so that it will just skip 'for' loop if
>there aren't any files matches the pattern?

setopt nullglob

-zefram

Re: Filename Expansion

[Vincent Lefevre]

> setopt nullglob

Writing
        for i in *.vhd(N); do
is better since it does not change the options (the setopt nullglob
is "local").

Vincent Lefevre.

Re: Filename Expansion

[Richard Coleman]

> I am writing a script to search files in a certain pattern
> and manipulate them. Something like:
> 
> 	for i in *.vhd; do
>  		# do some operation on $i here
> 	done
> 	# do other stuff
> 
> 
> This works fine if there is at least one file matches the
> pattern. Otherwise, it exits with an error and 'other stuff'
> never gets done.
> 
> How can I make it so that it will just skip 'for' loop if
> there aren't any files matches the pattern?


for i in *.vhd(N); do
   # do some stuff
done

The (N) says to use the nullglob option for this particular
glob pattern.

Richard Coleman
coleman@math.gatech.edu