[PDF] Introduction to Perl To print to your open

Is there a way to use printf in Perl?

The documentation for Perl's printf has this to say about such extensions Perl does its own "sprintf" formatting: it emulates the C function sprintf (3), but doesn't use it except for floating-point numbers, and even then only standard modifiers are allowed. Non-standard extensions in your local sprintf (3) are therefore unavailable from Perl.

How to stringify an object in Perl?

Normally, objects will stringify to something like Some::Package=HASH (0x467fbc) where perl is printing the package it is blessed into, and the type and address of the reference. Some modules choose to override this behavior. In Perl, this is done with the overload pragma. Here is an example of an object that when stringified produces its sum:

How to print a string literally in Perl?

If you want to print a string literally and you have Perl 5.10 or later then will print the string with a newline.. The importaning thing is to use single quotes ' ' rather than double ones " "

How to turn on print statements in Perl using a flag?

So my goal is to find an easy way to turn on print statements in Perl using a flag. In C/C++ you can use a #define to choose if certain code is run and it is a way to turn on and off debug print statements. If a #define DEBUG is defined, then you print something, else you run it without the print statements.