You need to open that file for appending and lock it.

use Fcntl ':flock';

# ... code ...
open FH, ">>$file" or die "Can't open $file: $!";
flock FH, LOCK_EX; # lock it

# ... print() to file here

flock FH, LOCK_UN; # not really necessary since close()
                   # will unlock the file anyway
close FH;
# ... code ...

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--perlplexer

In reply to Re: (OT?) File Locking by perlplexer
in thread (OT?) File Locking by Anonymous Monk

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