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Re: File Input and Output

by gpoduval (Initiate)
on Jan 30, 2001 at 11:42 UTC ( #55210=note: print w/ replies, xml ) Need Help??


in reply to File Input and Output

hmm...when i tried the >>filename nothing got appended into the file. it remained as it is
i am using activestate activeperl for windows on win2k.

i suspect this might be because i dont know how to end a program. anybody can help me ? www.comp.nus.edu.sg/~gokulpod


Comment on Re: File Input and Output
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Re: Re: File Input and Output
by Anonymous Monk on Jun 01, 2001 at 03:15 UTC
    No, before you can help yourself. Try Linux or FreeBSD or OpenBSD instead of Redmond crap. Now serious. try:

    #!/usr/bin/perl

    open(OUTPUT,">>/tmp/file");

    $a = "some text...";

    print OUTPUT $a;


    Now, change the /tmp/file and stuff to anything you want to.
    HTH

    vfs ("The Perl Monkey") :)

      I forgot this:

      it 's better to assign a variable to a filename, as:

      $b = "/tmp/file";

      Then change the filename in open to the name of that variable.

      Cheers.

      vfs.

      Im having the same problem w/ writing to a file, using Win2k/ActivePerl Thinking that win2k is not handling the opening of files correctly. Please, without saying, dont use win2k, can someone post a work around? I updated w/ the suggestion you posted as such:
      #!perl -w open(FILE, "data.txt"); #opens data.txt in read-mode while(<FILE>){ #reads line by line from FILE which i +s the filehandle for data.txt chomp; print "Saw $_ in data.txt\n"; #shows you what we have read } close FILE; #close the file. $a = "keylogger.dat"; open FILE, ">$a" or die; #opens file to be written to while(<>){ #while we're getting input from the keyb +oard print FILE $_; #write it to our file } close FILE; #then close our file.
      "Re: File Input and Output by gpoduval on Jan 30, 2001 at 06:42 hmm...when i tried the >>filename nothing got appended into the file. it remained as it is i am using activestate activeperl for windows on win2k. i suspect this might be because i dont know how to end a program. anybody can help me ? www.comp.nus.edu.sg/~gokulpod"
        Just in case:

        Make sure you're not cutting and pasting that text so that you have a line in your code that says:
        +s the filehandle for data.txt

        That (along with +oard) will likely cause errors, though I don't know what those errors would look like in ActivePerl for Win2k.

        - apotheon

        CopyWrite Chad Perrin
        I could be wrong but I guess that after typing your code you are using  Ctrl+c to end the script. This kills the script rather than ends the while loop. Try using  Ctrl+z instead. Cheers
        #!perl -w open(FILE, "data.txt"); #opens data.txt in read-mode while(<FILE>){ #reads line by line from FILE which i +s the filehandle for data.txt chomp; print "Saw $_ in data.txt\n"; #shows you what we have read } close FILE; #close the file. $a = "keylogger.dat"; open FILE, ">$a" or die; #opens file to be written to while(<>){ #while we're getting input from the keyb +oard print FILE $_; #write it to our file } close FILE; #then close our file.
Re^2: File Input and Output
by Anonymous Monk on Aug 23, 2007 at 17:56 UTC
    I believe you need work in a directory like that, c:\test. It happened to me same you, because Ive worked in a directory like this x:\test. Luiyi, luiyi2manu@gmail.com

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