Thanks, this group has been a big help.
I need to create a backup copy of a working file that changes everyday,
but I need to maintain a copy from each day.
Would like to create:
back1.txt
back2.txt
..
..
back56.txt
Is there a way to do this without a while loop and -e test?
Leland
3  5210 
LELAND PRINCE wrote: Thanks, this group has been a big help.
I need to create a backup copy of a working file that changes everyday,
but I need to maintain a copy from each day.
Would like to create:
back1.txt
back2.txt
.
.
back56.txt
Is there a way to do this without a while loop and -e test?
that can cause a race condition so be carefull.
just use a date like:
20030914.back.t xt
--
Kind regards, feel free to mail: mail(at)johnbok ma.com (or reply)
virtual home: http://johnbokma.com/ ICQ: 218175426
John web site hints: http://johnbokma.com/websitedesign/
Keep a separate file of the next available index. Open and lock it exclusive
before making the update. This will have the side benefit of avoiding
multi-thread problems. (That is, if you also modify the process(es) that
modify the working file to also ask for a lock).
"LELAND PRINCE" <ls**@gte.net > wrote in message
news:ho******** *********@nwrdd c02.gnilink.net ... Thanks, this group has been a big help.
I need to create a backup copy of a working file that changes everyday,
but I need to maintain a copy from each day.
Would like to create:
back1.txt
back2.txt
.
.
back56.txt
Is there a way to do this without a while loop and -e test?
Leland
Ted Hopp te*@newslate.co m
LELAND PRINCE wrote:
To create unique file names in general please see the advice in PerlFAQ
" How do I make a temporary file name?"
The last section describes how to create unique file names manually. I need to create a backup copy of a working file that changes
everyday, but I need to maintain a copy from each day.
Would like to create:
back1.txt
back2.txt
.
.
back56.txt
Is there a way to do this without a while loop and -e test?
Just read the directory, pick the (alphabetically ) largest file name, and
add 1.
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