These things like "use strict;" and "use warnings;" aren't just "tricks", this is part and parcel of well written Perl code.
I've used e-macs before but don't use it now. It appears you are using a Windows platform, but yes emacs could be used. Check into cygwin, http://www.cygwin.com/. This isn't Unix but it does a lot! This is how I installed my GNU C compilers. Familiar commands like ps, ls, cat will do things. like ps -h shown below......
As with Unix, there are a number of good program editors for Windows. Notepad is definitely not the way! I use TextPad, but there are others.
C:\TEMP>ps -h
Usage: ps [-aefls] [-u UID] [-p PID]
Report process status
-a, --all show processes of all users
-e, --everyone show processes of all users
-f, --full show process uids, ppids
-h, --help output usage information and exit
-l, --long show process uids, ppids, pgids, winpids
-p, --process show information for specified PID
-s, --summary show process summary
-u, --user list processes owned by UID
-v, --version output version information and exit
-W, --windows show windows as well as cygwin processes
With no options, ps outputs the long format by default
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