You have to use 'xargs' command for your requirement, for help put 'man xargs' in your shell.
if you include xargs it will work
echo "hello"|xargs perl -e 'print $ARGV[0]'

In reply to Re: Difference between piped-in and invocation arguments to a Perl script? by targetsmart
in thread Difference between piped-in and invocation arguments to a Perl script? by pat_mc

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