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Re: Set environment variable for one time system command windows

by samwyse (Scribe)
on Mar 27, 2013 at 19:55 UTC ( #1025802=note: print w/ replies, xml ) Need Help??


in reply to Set environment variable for one time system command windows

In both branches of your if statement, your string contains meta-characters, but on unix the shell expands environment variables as each statement is executed, while on windows they are only expanded once when the line is read. On my windows server, this is what happens when I run your command:

R:\>set test=hello && echo %test% %test%
I need to invoke the shell once more to make it work.
R:\>set test=hello && cmd /c "echo %test%" hello

This should work:

use strict; use warnings; if($^O =~ /mswin32/i){ system(qq!set test=hello && cmd /c "echo %test%"!); }else{ system("test=hello; export test; echo \$test"); }


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Re^2: Set environment variable for one time system command windows
by rmahin (Beadle) on Mar 27, 2013 at 19:59 UTC
    This is basically what BrowserUK said as well, thanks for the extra verification

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