Re: System call in Windows

Try the following:

#!/usr/bin/perl 

while (<>){
   s/CAT/mouse/g;
   print;
}
[download]

Then run the code like so:

prompt> perl -w myscript.pl 'D:\tmp\file.txt' > D:\tmp\file.txt
[download]

Update: Thanks for the reference to the -pi flags. I understand now. The while loop is superfluous with the -p and the -i will edit the file given in place. Why does he need a system() function call around the whole thing? Won't that spawn another shell?

Comment on Re: System call in Windows Select or Download Code

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Re^2: System call in Windows by runrig (Abbot) on Oct 24, 2008 at 19:37 UTC
If the OP fixed the quoting, then the file would be opened, read, and written to. Look at the -p and -i options in perlrun. Update: Won't that spawn another shell? Yes, and you could do it without spawning another shell, with a bit more code. But the -p and -i flags make the job convenient, and if the OP doesn't care about the extra process, then neither do I :-)	[reply]
Re^2: System call in Windows by csarid (Sexton) on Oct 24, 2008 at 19:58 UTC
Hello krusty, Thanks for the suggestion. It's a good work around and I'll definitely use it in some other case. But what part of what I'm trying to do is also provide variables in the replacement so instead of CAT and mouse I would have "$var1" and "$var2". Thanks again!	[reply]
Re^2: System call in Windows by NateTut (Deacon) on Oct 24, 2008 at 19:54 UTC
I myself wouldn't have wanted the overhead of a system call to start another perl interpreter, but it sounded like the OP was porting over something that had worked in UNIX to WinDoze, so I answered his basic question about that.	[reply] [d/l]