Re: selcting a specific file

[andyford]

For us to help you most effectively, you should post your actual code. We don't know what "it doesn't work out" means. Perhaps your file is not zero bytes but contains some whitespace or something?

[Anonymous Monk]

@files = grep { /\.log$/ } readdir ($DIR);
foreach my $x (@files){
open READFILE, "......";
open WRITEFILE, ">......";
while(<READFILE>){
chomp;
my @parts = split(/\s/, $_);
print WRITEFILE $parts[1], " ", $parts[0], "\n";
}
close WRITEFILE;
close READFILE;

this is the original code

[Anonymous Monk]

the file doesn't have any content

[andyford]

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.

[Anonymous Monk]

wht command did you select for getting such an output???