In my previous post - downloading youtube videos with a Perl one-liner - I used Perl's special variable $_. This is just one of many Perl's special variables. Best mac os utilities.
One day last year I decided to go through all the Perl's special variables carefully so I could become a better Perl programmer and make a cheat sheet which I could always keep on my desk and look things up when needed.
As I explained in the previous cheat-sheet post (awk's cheat sheet), the cheat sheets are for learning things better and not doing things blindly and looking the stuff each time up. Here is another example why cheat sheets are helpful - suppose you programmed for 5 hours and then sat back in your chair to relax for 10 minutes. You could relax by taking cheat sheet in your hands and just scan through it and remember a thing or two. Whats the best apple mac laptop to buy.
This cheat sheet contains all the perl's special variables, their description and examples where possible.
Perl Command Cheat Sheet
Perl when not followed by a word boundary (e.g. In perlert but not in perl stuff) Examples of simple use in Perl statements. These examples use very simple regexps only. Mac 10.7 download free. The intent is just to show contexts where regexps might be used, as well as the effect of some “flags” to matching and replacements. This cheat sheet contains all the perl's special variables, their description and examples where possible. It can be nicely printed on one sheet of paper by having two pages per side. Two on one side and two on other. That's how I have printed it. Available as usual in.doc and.pdf formats. Download Perl's Special Variable Cheat Sheet. Perl Reference Card Cheat Sheet by Nikolay Mishin (mishin) via cheatography.com/1008/cs/399/.
Perl Cheat Sheet Regex
It can be nicely printed on one sheet of paper by having two pages per side. Two on one side and two on other. That's how I have printed it.
Available as usual in .doc and .pdf formats.
Perl Regex Cheat Sheet
Download Perl's Special Variable Cheat Sheet
- PDF document: perl.predefined.variables.pdf
- MS Word (.doc): perl.predefined.variables.doc
Perl Injection Cheat Sheet
See you next time!