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- Jan 1, 1970
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How do I end my perl script in the middle, if I check and see the input is wrong and i want to end the program
like exit(1); in C
like exit(1); in C
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terminate program
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pretty simple....
#!/usr/local/bin/perl
if (some condition) { exit; }
or, if you would like to print to STDOUT on the way out
#!/usr/local/bin/perl
if (some condition) { die "Failed the condition\n"; }
# you often use die to get out after failure to do something you
# needed to do, like open a file
#!/usr/local/bin/perl
open(IPF,"<input_File_name"
or die "Failed to open input file, $!\n";
'hope this helps.
keep the rudder amid ship and beware the odd typo
#!/usr/local/bin/perl
if (some condition) { exit; }
or, if you would like to print to STDOUT on the way out
#!/usr/local/bin/perl
if (some condition) { die "Failed the condition\n"; }
# you often use die to get out after failure to do something you
# needed to do, like open a file
#!/usr/local/bin/perl
open(IPF,"<input_File_name"
or die "Failed to open input file, $!\n";'hope this helps.
keep the rudder amid ship and beware the odd typo
goBoating, doesn't die print to STDERR, not STDOUT?
Sincerely,
Tom Anderson
CEO, Order amid Chaos, Inc.
Sincerely,
Tom Anderson
CEO, Order amid Chaos, Inc.
Note: because die prints to STDERR and not STDOUT, if you are using it in a cgi script whatever you print that way will usually NOT show up! My solution was to write a CgiError subroutine which takes an error message and prints an html page showing the error message and then exits. This achieves the same end, but allows you to display the error in the browser.
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