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Return value of system()

applefreakpeeps
New User

Dec 14, 2009, 9:09 AM

Post #1 of 3 (1800 views)

Return value of system()	Can't Post

system() seems to behave funnily here:

my $exit_val = system("perl -e 'use English; use strict; kill 11, \$PID");
print $exit_val;

I get 35584 (ie. Exit value: 139, Signal: 0, Coredump: 0) which is incorrect

If I write the same code in a separate perl file (say abc.pl) and execute abc.pl via system then:

my $exit_val = system("perl abc.pl");
print $exit_val;

I get 139 (ie. Exit value: 0, Signal: 11, Coredump: 127) which is correct.

Can anyone please point out the reason for this discrepancy?

shawnhcorey
Enthusiast

Dec 14, 2009, 10:45 AM

Post #2 of 3 (1793 views)

Re: [applefreakpeeps] Return value of system() [In reply to]	Can't Post

When I run this:

Code

my $exit_val = system("perl -e 'use English; use strict; kill 11, \$PID"); 
print $exit_val;

I get:

Code

sh: Syntax error: Unterminated quoted string 
512

__END__

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applefreakpeeps
New User

Dec 14, 2009, 11:20 AM

Post #3 of 3 (1790 views)

Re: [shawnhcorey] Return value of system() [In reply to]	Can't Post

sorry that should've been

my $exit_val = system("perl -e 'use English; use strict; kill 11, \$PID'");

anyways problem solved.. its coz when there is 1 scalar alone system() passes it as it is to sh instead of invoking execvp.

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