Output redirection problem in Windows ActivePerl

sagarkha has asked for the wisdom of the Perl Monks concerning the following question:

system("ping $_ >/root/scripts/log.txt");
The above code works for me in Linux

But in windows, the simililar code does not work 
system("ping $_ >c:\temp\log.txt");

By using, single cotes, i can use it like
system('ping 10.56.1.1 >c:\temp\log.txt');

But my scripts requires this command to be used in a loop, but this do
+esn't permit to use scalar variable. 

system('ping $_ >c:\temp\log.txt'); 
So this command doesnt work
[download]

Comment on Output redirection problem in Windows ActivePerl Download Code

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Re: Output redirection problem in Windows ActivePerl by Corion (Patriarch) on Sep 20, 2010 at 12:15 UTC
Backslashes in double quotes behave differently from backslashes in single quotes. Your `\t` in `c:\temp` gets interpreted as tab character in double quoted strings. See perlop. The solution is to check the command you're about to execute: `my $cmd = "ping $_ >c:\temp\log.txt"; print "About to run [$cmd]\n"; system($cmd) == 0 or die "Couldn't run [$cmd]: $!/$?/$^E";` [download] In the short run, doubling all backslashes will do what you want: `my $cmd = "ping $_ >c:\\temp\\log.txt"; print "About to run [$cmd]\n"; system($cmd) == 0 or die "Couldn't run [$cmd]: $!/$?/$^E";` [download]	[reply] [d/l] [select]
Re: Output redirection problem in Windows ActivePerl by cdarke (Prior) on Sep 20, 2010 at 15:28 UTC
Depending on the version of cmd.exe, you might be able to use forward slashes instead for the directory seperator. That works OK on Windows 7.	[reply]