echo "$shell" echo "$SHELL" /usr/bin/perl -le'print for grep /perl/, split /:/, $ENV{PATH}' which perl which perlbrew echo "$PERLBREW_ROOT" /usr/bin/perl -le'local $/; $_ = <>; print substr($_, 0, 500);' \ "${PERLBREW_ROOT:-$HOME/perl5/perlbrew}/bin/perlbrew"