I develop Perl with Komodo which uses PerlTidy to check syntax when typing each character and GitHub Desktop to admire the evolution of large brojects (cause i like that typo). But when I develop ideas at the speed of thought none of that otherwise wonderful stuff can keep up with me and the up arrow. Once 1 line grows to 3 or 5 and it finally works then I can:

echo perl -le 'print"JaPH"'|
perl -e '$_=<STDIN>;s/perl\s\-?[a-zA-Z]*\s*\W//s;
print qq~\#\!/usr/bin/perl\n\nuse strict;\nuse warnings;\n\n$_;~'| 
perltidy -st > script; nano script
[download]

perl -MO=Deparse -e 'I T T M W O D T I'