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Top Forums UNIX for Dummies Questions & Answers how to expand environment variables in a file? Post 302330569 by jim mcnamara on Wednesday 1st of July 2009 04:29:14 PM
Old 07-01-2009
I think you mean to 'get the value of' a variable or maybe dereference it.

Do you mean you want to create a file using a variable as a filename?
Code:
SourceFilePath=/db1/Src/test 
var=${SourceFilePath}/file.txt
> $var     # this creates an empty file named /db1/Src/test/file.txt

 

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Text::Tabs(3pm) 					 Perl Programmers Reference Guide					   Text::Tabs(3pm)

NAME
Text::Tabs -- expand and unexpand tabs per the unix expand(1) and unexpand(1) SYNOPSIS
use Text::Tabs; $tabstop = 4; # default = 8 @lines_without_tabs = expand(@lines_with_tabs); @lines_with_tabs = unexpand(@lines_without_tabs); DESCRIPTION
Text::Tabs does about what the unix utilities expand(1) and unexpand(1) do. Given a line with tabs in it, expand will replace the tabs with the appropriate number of spaces. Given a line with or without tabs in it, unexpand will add tabs when it can save bytes by doing so (just like "unexpand -a"). Invisible compression with plain ASCII! EXAMPLE
#!perl # unexpand -a use Text::Tabs; while (<>) { print unexpand $_; } Instead of the "expand" comand, use: perl -MText::Tabs -n -e 'print expand $_' Instead of the "unexpand -a" command, use: perl -MText::Tabs -n -e 'print unexpand $_' LICENSE
Copyright (C) 1996-2002,2005,2006 David Muir Sharnoff. Copyright (C) 2005 Aristotle Pagaltzis This module may be modified, used, copied, and redistributed at your own risk. Publicly redistributed modified versions must use a different name. perl v5.12.1 2010-04-26 Text::Tabs(3pm)
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