Re: shell game

[Travis Crump <pretzalz@techhouse.org>]

Drew Cohan wrote:
> Hi,
>
> Using a bash shell script (/bin/sh), I need to know how to check to see
> if certain files exist in a directory, as in, "Are there any jpegs in
> this directory?".  I've tried various things (like using -s, -f with
> test and a do/for loop) but nothing seems to work right.  The closest I
> can come is
>
> if test `ls /opt/images/*.jpg | wc -l` -gt 0 then ...
>
> Unfortunately, this gives me the error message "ls: /opt/images/*.jpg:
> No such file or directory" when there are no jpegs in /opt/images.
>
> So what am I missing here?

From the there has got to be a better way department:

ls /opt/images/*.jpg > /dev/null 2>&1 && echo there are jpegs