... or -pe;

Works on Windows, doesn't on POSIX-compatible shells (bash and many others). The semicolon is used by the shell, so it won't be passed to perl. POSIX: Shell Command Language:

Sequential Lists

Commands that are separated by a <semicolon> (';') shall be executed sequentially.

The format for executing commands sequentially shall be:

command1 [; command2] ...
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Each command shall be expanded and executed in the order specified.

Running bash 4 on Linux:

>bash --version
GNU bash, version 4.3.48(1)-release (x86_64-slackware-linux-gnu)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gp
+l.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

>perl -pe;
No code specified for -e.

>
[download]

Alexander