Re^2: Quotable Quotes

It appears to me that everyone is missing the point. Perhaps I was too verbose in my question, so let me be terse this time.

Ignore all the echo example, that was just to illustrate a point. My real question is just this one:

print STDERR `"My Echo.pl"`;
print STDERR `"My Echo (v1).pl"`;
[download]

The first line works. The second doesn't. Why?

The behavior is consistent. Any file name with a parenthesis does not work. Others seem to work just fine.

Yes I know, I can rewrite things (eg. `perl "My Echo (v1).pl"`). My question still is: Why?

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Re^3: Quotable Quotes by goibhniu (Hermit) on Sep 07, 2007 at 20:29 UTC
I think I've reproduced your problem in my environment. Triple double-quotes doesn't solve it: C:\chas_sandbox>copy con "My Echo.pl" print "hello, world\n"; ^Z 1 file(s) copied. C:\chas_sandbox>copy con "My Echo (v1).pl" print "hello, world\n"; ^Z 1 file(s) copied. C:\chas_sandbox>"My Echo (v1).pl" hello, world C:\chas_sandbox>"My Echo.pl" hello, world C:\chas_sandbox>perl -e "print STDERR `"My Echo.pl"`;" Can't find string terminator "`" anywhere before EOF at -e line 1. C:\chas_sandbox>perl -e "print STDERR `"""My Echo.pl"""`;" hello, world C:\chas_sandbox>perl -e "print STDERR `"My Echo (v1).pl"`;" Can't find string terminator "`" anywhere before EOF at -e line 1. C:\chas_sandbox>perl -e "print STDERR `"""My Echo (v1).pl"""`;" 'My' is not recognized as an internal or external command, operable program or batch file. [download] It's obviously getting to the cmd shell, since the `not recognized as an internal or external command` is from cmd. per Sandy's message, below, it's definitely the `()`'s that are messing you up. And it's cmd that doesn't like them, not Perl. I know you're still asking "why?" but here's another tack for a work-around: C:\chas_sandbox>dir /x "My Echo (v1).pl" Volume in drive C has no label. Volume Serial Number is D425-A27D Directory of C:\chas_sandbox 09/07/2007 04:22 PM 25 MYECHO~2.PL My Echo (v1).pl 1 File(s) 25 bytes 0 Dir(s) 28,821,581,824 bytes free C:\chas_sandbox>perl -e "print STDERR `MYECHO~2.PL`;" hello, world C:\chas_sandbox> [download] I've used dir /x to get the short name and called the script using the shortname between the backticks. I humbly seek wisdom.	[reply] [d/l] [select]
Re^4: Quotable Quotes by goibhniu (Hermit) on Sep 07, 2007 at 20:58 UTC
Here's lots of inconsistent behavior, all of which (I think) can be blamed on cmd.exe C:\chas_sandbox>"My Echo (v1).pl" hello, world C:\chas_sandbox>cmd /c "My Echo (v1).pl" 'My' is not recognized as an internal or external command, operable program or batch file. C:\chas_sandbox>cmd /c " "My Echo (v1).pl"" hello, world C:\chas_sandbox>cmd /c ""My Echo (v1).pl"" hello, world C:\chas_sandbox>perl -e "print STDERR ` """My Echo (v1).pl"""`;" hello, world C:\chas_sandbox>perl -e "print STDERR `""" """My Echo (v1).pl""""""`;" '" "My' is not recognized as an internal or external command, operable program or batch file. C:\chas_sandbox> [download] I humbly seek wisdom.	[reply] [d/l]
Re^3: Quotable Quotes by narainhere (Monk) on Sep 07, 2007 at 19:16 UTC
Maybe the '(' symbol gives some special meaning .I'm nt sure!!! The world is so big for any individual to conquer	[reply]

The world is so big for any individual to conquer