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Re^2: execution of command inside for loop fails

by kaka_2 (Acolyte)
on Oct 04, 2013 at 10:41 UTC ( #1056863=note: print w/ replies, xml ) Need Help??


in reply to Re: execution of command inside for loop fails
in thread execution of command inside for loop fails

Thank You. adding strict and warnings was very helpful.


Comment on Re^2: execution of command inside for loop fails
Re^3: execution of command inside for loop fails
by kaka_2 (Acolyte) on Oct 04, 2013 at 11:03 UTC

    Here is my updated code

    sub ReadPolicies { # based on the below command it reads values in ar +ray my ($type) = @_; my @Policies = `/opt/OV/bin/opctemplate -l | grep -i $type | awk '{pri +nt \$2}'`; return (@Policies); } #MAIN My @FailoverPolicies = &ReadPolicies(DBSPI); For (my $i=0; $i < @FailoverPolicies; $i++) { my $cmd "/opt/OV/bin/opctemplate -e" . " " . "$FailoverPolicies[$i]"; my $output= `$cmd`; # here i expect this command read each value from +the array and take action, -e to enable }

    and this works fine but the problem i face is that i see so many <defunct> process on system and i think it is because first command is not completed and second also start and so one and one point this hangs.

    What can i do to ensure 2nd command executes only when first is completed in the loop.

    Thank You.

    -KAKA-

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