call a shell script from a perl script

nirvanaPL has asked for the wisdom of the Perl Monks concerning the following question:

I have aperl script that does a series of processing and if a condition is met it executes a shell script. The shell script and the perl module live in the same directory location. However, I get the following error with its call. I have also tried a chdir before the shell script is executed and provide the path+shell_script (/dir/shell.sh)but the same error message every time.</P

Can't exec "sh": No such file or directory at
    ../home/lib/dirA/perl_script.pm line 91 (#1)
(W exec) A system(), exec(), or piped open call could not execute the
named program for the indicated reason.  Typical reasons include: the
permissions were wrong on the file, the file wasn't found in
$ENV{PATH}, the executable in question was compiled for another
architecture, or the #! line in a script points to an interpreter that
can't be run for similar reasons.  (Or maybe your system doesn't suppo
+rt
#! at all.)
[download]

shell script

chdir "/home/lib/dirA/";
system("sh shell_script.sh");
[download]

I got curious so I built a simple perl script with only one command to call the same shell script and it completes without any error.

I have tried to research the warning errors but I have not found anything significant. Any insight is greatly appreciated.

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Re: call a shell script from a perl script by NetWallah (Canon) on Jan 15, 2014 at 16:34 UTC
Alternatively, use the "full path" to sh, and the target command. use "-c" to parse from the command options (instead of from the standard input). These are standard "sh" parameters, nothing to do with perl. `system("/bin/sh -c /bin/uname -a")` [download] Update:: To properly pass the "-a" parameter to uname above, the command needs to be written as : `system("/bin/sh -c \"/bin/uname -a\"") ; # or (more readable): system(qq(/bin/sh -c "/bin/uname -a"))` [download] If your eyes hurt after you drink coffee, you have to take the spoon out of the cup. -Norm Crosby	[reply] [d/l] [select]
Re^2: call a shell script from a perl script by nirvanaPL (Novice) on Jan 15, 2014 at 16:54 UTC
Awesome! Using the full path to the sh worked. Thank you very much your help. Appreciate! Posting what worked out for someone who may have similar issue. `"/bin/sh shell_script.sh"`	[reply] [d/l]
Re: call a shell script from a perl script by toolic (Bishop) on Jan 15, 2014 at 15:02 UTC
Show your shell script. Does it have a shebang line (`#!/bin/sh`)? If so, you can probably omit the sh in the system call: `chdir "/home/lib/dirA/"; system("shell_script.sh");` [download]	[reply] [d/l] [select]