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I am trying to call a bash script in perl, by doing this - 

my $which_mpi = "/sw/tools/tacc/builds/carter/site/salt_which_mpi";
$mpi_stack = system("$which_mpi",-n);

the problem is that I want the script to execute when it is called by system command in line 

$mpi_stack = system("$which_mpi",-n);

but the problem with this is while assigning the path in $which_mpi it automatically executes the script. So instead of me getting this value 

WHICH_MPI : /sw/tools/salt/builds/carter/altd/bin/site/salt_which_mpi

I am getting the path with the output of the bash script like 

WHICH_MPI : /sw/tools/salt/builds/carter/altd/bin/site/salt_which_mpiopenmpi 1.6.1

where openmpi 1.6.1 is the output of my salt_which_mpi bash script.

kay
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1 Answers1

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You can use perl's backtick operator

`bash -c "$WHICH_MPI"`

take a look at this question: another stackoverflow question

Community
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Marco Aurelio
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  • No worries I used this and it worked $mpi_stack = "`$which_mpi --name`; "thanks! which is close to you suggested. – kay May 22 '14 at 19:38