It is easy to make this mistake if you are trying to comment out a large block of code. Block comments delimit a region of source code which may span multiple. Activestate perl has binary distributions of perl for mac os x. In this example, we write single line comments that span the whole line and single line comments after a. Multiple db queries using dbi by runrig abbot on nov 18, 2004. Hello, did anyone know how to write a perl script to merge the multiline into a single line where each line with start at. Remember that the very first line of your program is a very special comment. Here documents, or how to create multiline strings in perl. Multiple db queries using dbi by dragonchild archbishop on nov 18, 2004 at 14. Hi, i am trying to remove multi line and single line comments like examples below i have tried this pattern. How to use perl to merge multiline into single line. Simply saying comments in perl start with a hash symbol and run to the end of the line. These are special comments called pod plain old documentation. Comments can be used to make program user friendly and they are simply skipped by the interpreter without impacting the code functionality.
Any text between the markers will be commented out. Simple information on how to comment multiple lines in a perl script. Commenting multi lines in perl script website scripts. Pod is the official way to do multi line comments in perl, whether you think of it as as a workaround or not which varies, use for comment or beginend comment for stuff thats just comments and shouldnt show up in the output text when documentation is extracted from the code, such as when you run perldoc on the program. Following is an example bash script that has single line comments in between commands. The quickanddirty way to comment out more than one line of perl is to surround those lines with pod directives. This is the simplest way to install the latest version of perl. You end the comment with cut, ending the pod section. How to use perl to join multiline into single line. Although a single line comment is quite useful, it can sometimes be burdensome to use when disabling long segments of code or inserting longwinded comments.
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