overwrite a file

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

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Re: overwrite a file by RazorbladeBidet (Friar) on Apr 01, 2005 at 21:38 UTC
I'm assuming you're using File::Copy. What are you trying? I can do the following (where both tmp.pl and tmp.log exist) with no problems: `perl -MFile::Copy -le 'File::Copy::copy("tmp.log", "tmp.pl");'` [download] Do you maybe not have write permissions? -------------- "But what of all those sweet words you spoke in private?" "Oh that's just what we call pillow talk, baby, that's all."	[reply] [d/l]
Re: overwrite a file by bcole23 (Scribe) on Apr 01, 2005 at 21:43 UTC
Your problems are probably due to file permissions or something else having a lock on the file. If you can't copy over it, then you could check for locks, sleep, and retry for a while. If you don't know or have control over the files that you're copying over, you may want to check permissions on the files first and process accordingly.	[reply]
Re^2: overwrite a file by Anonymous Monk on Apr 01, 2005 at 23:04 UTC
Thank you all for your responses. I am trying to use File::Copy command...you are probably right...I might not have permissions to change the file. If I don't have permission to change the file, I might not be able to overwrite. I'll go ahead and implement changing the permissions for the files. Thanks.	[reply]
Re: overwrite a file by punch_card_don (Curate) on Apr 01, 2005 at 22:59 UTC
Do you mean you're trying to create a "copy" subroutine to use in a program? Something like: `sub copy( source, destination ) { open SOURCEFILE "source"; open DESTINATIONFILE "destination"; while (<SOURCEFILE>) { print DESTINATIONFILE ; } close DESTINATIONFILE; close SOURCEFILE; }` [download] If so, then maybe the problem is in how you're opening the destination file. `open FILE "<$file";` [download] to read a file `open FILE ">$file";` [download] to write to a file, creating it if necessary `open FILE ">>$file";` [download] to append to a file, creating it if necessary Forget that fear of gravity, Get a little savagery in your life.	[reply] [d/l] [select]
Re: overwrite a file by tlm (Prior) on Apr 01, 2005 at 21:41 UTC
Update: Please disregard; wrong info. My bad. the lowliest monk	[reply]
Re^2: overwrite a file by bcole23 (Scribe) on Apr 01, 2005 at 21:44 UTC
He said, "copy a file over to another directory", so I believe it is not the same file. <Update> and so please disregard this too! :)	[reply]


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