Stories
Slash Boxes
Comments
NOTE: use Perl; is on undef hiatus. You can read content, but you can't post it. More info will be forthcoming forthcomingly.

All the Perl that's Practical to Extract and Report

use Perl Log In

Log In

[ Create a new account ]

grinder (1100)

grinder
  (email not shown publicly)
http://www.landgren.net/perl/
Yahoo! ID: perlgrinder (Add User, Send Message)

Editor of p5p summaries, member of the p5p peanut gallery.

Journal of grinder (1100)

Thursday September 27, 2007
06:05 AM

Bitten by glob crypto context

[ #34555 ]

/me is annoyed

I just spent a while chasing a stupid bug. I have an big log directory that I have to clean up. The number of files caused the shell's wildcard expansion to fail. So I wrote some perl to move things around.

And it didn't do anything. To cut a long story short, I needed the total number of files in the directory. So I had something along the lines of:

perl -le 'print scalar(glob("*"))'

That does not return the number of files. It returns the name of the first file. Or the last. I don't care.

You have to force array context and throw it away:

perl -le 'print scalar(()=glob("*"))'

This prints 31192. I wish Perl didn't do this. Nice interview question though, I guess.

The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
 Full
 Abbreviated
 Hidden
More | Login | Reply
Loading... please wait.