In the above normally "warn" would be "die". In almost all cases an OPEN should succeed on a file_path (usual case is that you know a valid file_path). There are exceptions of course, but they are aren't "normal".#!/usr/bin/perl -w use strict; open (IN, "somefile") || warn "unable to open somefile"; open (IN, "somefile") || hey_do_something(); sub hey_do_something { print "some stuff in a sub\n"; print "more stuff in a sub\n"; }
Anyway above "warn", "die", "hey_do_something" are just subroutines to execute if the OPEN fails.
Update: If you are working with some user input, I would check that the file exists before even getting to the "open" statement unless the error message from the open() is very clear: open() or die "can't open $file $!";
In reply to Re: two statements in or
by Marshall
in thread two statements in or
by Selvakumar
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