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Re^3: selcting a specific file

by andyford (Curate)
on Oct 22, 2007 at 22:24 UTC ( #646594=note: print w/ replies, xml ) Need Help??


in reply to Re^2: selcting a specific file
in thread selcting a specific file

That's my point. -z is looking for a zero byte file, but 'no content' could be a bunch of tabs and spaces.

[forda@hqnagtl1 ~]$ touch emptytest1 [forda@hqnagtl1 ~]$ touch emptytest2 [forda@hqnagtl1 ~]$ ls -l emptytest* -rw-rw-r-- 1 forda forda 0 Oct 22 17:19 emptytest1 -rw-rw-r-- 1 forda forda 0 Oct 22 17:19 emptytest2 [forda@hqnagtl1 ~]$ echo ' ' >> emptytest2 [forda@hqnagtl1 ~]$ ls -l emptytest* -rw-rw-r-- 1 forda forda 0 Oct 22 17:19 emptytest1 -rw-rw-r-- 1 forda forda 15 Oct 22 17:20 emptytest2
I put some spaces into a formerly empty file and now it has a size of 15.

non-Perl: Andy Ford


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Re^4: selcting a specific file
by Anonymous Monk on Oct 22, 2007 at 23:33 UTC
    wht command did you select for getting such an output???

      Sorry, I should have mentioned that my example is on Unix. The point is that for -z to flag a file as empty, it must have nothing in it. No spaces, no tabs, no nothing.

      non-Perl: Andy Ford

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