How to run Perl in an interactive shell

perl-shell.md

How to run Perl in an interactive shell

by Asim Jalis, MetaProse.com

An interactive shell is useful for quickly trying out different commands. While Ruby, Python, and Clojure come with interactive shells, Perl does not. However, it is easy to create one using this one-liner on Unix systems:

perl -e 'do{print("perl> ");$_x=<>;chomp $_x;print(eval($_x)."\n")}while($_x ne "q")'

To quit type q.

To make this easier to remember save the following text in a file called perli:

#!/usr/bin/env perl
do{print("perl> ");$_x=<>;chomp $_x;print(eval($_x)."\n")}while($_x ne "q")

In Windows 10 x64 with ActivePerl it does not work, any idea how to solve it? Thank you.

that's fun! especially it does everything in one line of code

perl -de1 works well on Windows.

so the interactive shell wasn't available before Perl6?

In Windows 10 x64 with ActivePerl it does not work, any idea how to solve it? Thank you.

Same here:

perl -e 'do{print("perl> ");$_x=<>;chomp $_x;print(eval($_x)."\n")}while($_x ne "q")'
> was unexpected at this time.

In Windows 10 x64 with ActivePerl it does not work, any idea how to solve it? Thank you.

Same here:

perl -e 'do{print("perl> ");$_x=<>;chomp $_x;print(eval($_x)."\n")}while($_x ne "q")'
> was unexpected at this time.

Windows doesn't understand that ' is also a quote character; you must use " for quoting the inline script
Luckily in perl TIMTOWTDI, so use this in windows:
perl -e "do{print('perl> ');$_x=<>;chomp $_x;print(eval($_x).qq[\n])}while($_x ne 'q')"