Create file in a specified directory

ramya2005 has asked for the wisdom of the Perl Monks concerning the following question:

Replies are listed 'Best First'.
Re: Create file in a specified directory by ikegami (Patriarch) on Sep 01, 2005 at 18:16 UTC
Print out `$!` to see the error message: `open $fh, ">$uniqueCaptureName" or die "can't open file: $!\n";` [download] Better yet, use the three arg `open`: `open $fh, '>', $uniqueCaptureName" or die "can't open file: $!\n";` [download]	[reply] [d/l] [select]
Re^2: Create file in a specified directory by ramya2005 (Scribe) on Sep 01, 2005 at 18:47 UTC
Thank you. The code was failing because I didn't have the directory named 'Input' under the 'Public'. When I created that directory it worked Is there a way to check the directory structure and create directories as specified in the path if it doesn't exist already?	[reply]
Re^3: Create file in a specified directory by davidrw (Prior) on Sep 01, 2005 at 19:00 UTC
use `-d` (`perldoc -f -X`) to check for exsistence.. for making a directory there's `perldoc -f mkdir`, and for making it recursively there's `mkpath` in File::Path	[reply] [d/l] [select]
Re^3: Create file in a specified directory by Anonymous Monk on Sep 01, 2005 at 19:01 UTC
yes , sure you can check for that `#check if the $dir does not exits then we create it if(!-d $dir){ mkdir($dir);}` [download] HTH	[reply] [d/l]
Re: Create file in a specified directory by Old_Gray_Bear (Bishop) on Sep 01, 2005 at 18:18 UTC
Change the text of your die message a trifle to include the $! (error message). I suspect that will give you a better feel for what is happening.... `open $fh, ">$uniqueCaptureName" or die "can't open file -- $! \n";` [download] ---- I Go Back to Sleep, Now. OGB	[reply] [d/l]
Re: Create file in a specified directory by sh1tn (Priest) on Sep 01, 2005 at 18:28 UTC
You may want to use lexical scope in addition to strict, warnings, diagnistics pragmas and the good advices already given: `open my $fh ...` [download]	[reply] [d/l]
Re: Create file in a specified directory by InfiniteSilence (Curate) on Sep 01, 2005 at 18:46 UTC
Hey, don't you mean, `$uniqueCaptureName = 'C:\Program Files\PBORE\Public\Input\'."$uniqueCa +ptureName";` [download] ??? Celebrate Intellectual Diversity	[reply] [d/l]
Re^2: Create file in a specified directory by ramya2005 (Scribe) on Sep 01, 2005 at 18:53 UTC
I think backward slash is considered as escape sequence...... Anyway, the problem is resolved now. I didn't have the specified directory created.	[reply]
Re^3: Create file in a specified directory by mulander (Monk) on Sep 01, 2005 at 19:09 UTC
I think backward slash is considered as escape sequence...... Anyway, the problem is resolved now. I didn't have the specified directory created. It is considered as a escape sequence but only in a double quoted string, in signle quoted strings it is treated as a regular backslash character.	[reply]