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Re: csv file is not opening using use strict

by Rudolf (Pilgrim)
on Sep 06, 2012 at 23:13 UTC ( #992207=note: print w/replies, xml ) Need Help??


in reply to csv file is not opening using use strict

If the file exists your program should open it fine, atleast mine does (win7), however I think your mistake may be in the opening statement. the parameter '<' is the read only .. if the file has not yet been created and you want to create it use the '>' param. also the '>>' is used for appending. Sory if this doesnt help I am thinking of other reasons why you might be getting yelled at.

open(FILE,'>',"file.csv") or die;

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Re^2: csv file is not opening using use strict
by chromatic (Archbishop) on Sep 06, 2012 at 23:30 UTC

    I don't understand; the OP clearly wants to read a file. Why suggest a change that will write a file? If the file doesn't exist, the code as posted will give an error message to that effect.

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[choroba]: how many event types are there?
[Corion]: Also I found that I can't conveniently weaken an array slot, which also is inconvenient, as I want my one-shots to disappear if the caller discards them
[Corion]: choroba: Currently two or three that my program handles (WWW::Mechanize:: Chrome), but there might be more that become interesting
[Corion]: But I don't expect more than 100 to be active at the same time, so I'm not really sure if there is a not-too-fancy data structure that is maintained with few lines of code where the performance is better than the linear scan ;)
[Corion]: But I should do a mock-up program so that others can see what I'm talking about ;)
[robby_dobby]: Corion: I hope you know all too well that passing around "fancy" datastructures is a recipe for disaster :-)
[robby_dobby]: As in, it's-too-fancy- that-it-will-be- messy-to-handle
[choroba]: bit vectors as keys?
[robby_dobby]: Hmm, I keep falling asleep at my desk, while maintaining an active appearance. Am I getting old?
[robby_dobby]: Every time I fall asleep, there's a small guy in the dreams, shouting "Whoo!" and it jolts me awake. :/

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