How to access shell environment variables in Perl script
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In some cases you may want to access shell environment variables (e.g., $PATH, $PWD, $HOME, $LANG) in your Perl script. While you can pass any needed variables to your Perl script via @ARGV argument array, this is actually not needed since Perl provides a way to access all available environment variables. Let's find out how to access shell environment variables in Perl script.
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