Perl Shell - A Solution

system $shell, '-c', $_;

Recall:

• $shell contains the name of the shell that you determined to use.
• -c tells the shell to just run the command in the following argument.
• $_ holds the command; it is the last thing read from <>.
• If the command generates an error message of any sort, either the Unix shell or the program itself will automatically output the message.
• The exit status of the command is also the exit status of the shell, which will be assigned to the Perl variable $? in some form, in case later psh commands wish to make use of it.