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Re: Delete specific lines from txt file.

by NetWallah (Canon)
on Aug 07, 2012 at 03:38 UTC ( #985868=note: print w/replies, xml ) Need Help??

in reply to Delete specific lines from txt file.

Here is the (untested) rest of your program.

Please reference the perl documentation for constructs you have trouble with.

$/="\n\n"; # Set the record separator to be 2 newli +nes my $sportfile=""; # Or whatever the file name is open (my $sport, "<", $sportfile) or die "Cannot open $sportfile : $!" +; while (defined <$sport>){ next if m/\b$first_name\b.+$last_name\b/; print; } close $sport;
Output will print to STDOUT. This can be directed to a file.
Update:Corrected "close $sportfile" to "close $sport;"

             I hope life isn't a big joke, because I don't get it.

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Re^2: Delete specific lines from txt file.
by MidLifeXis (Monsignor) on Aug 07, 2012 at 12:38 UTC

    This can be directed to a file.
    Just don't redirect it to the original file name. The first thing the OS would do is to truncate the original file, leaving no data for your text file to work with.


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[ambrus]: nysus: make sure you enter at least two lines for the title and then preview, and read warnings the preview form prints
[davies]: There is an option (I have it set) to force preview before submission. Perhaps your option has been set (accidentally?) and you are not expecting it.
[ambrus]: sorry, I mean at least two words for the title and then preview
[ambrus]: davies: that option is the default. and it's not really "force", it just hides the button.
[marto]: yes, not reading the errors displayed has been a cause of this type of report in the past
[nysus]: Ambrus, ah. I think that was the problem. I'll try. Thanks!
[davies]: Ambrus: you've missed it by a couple of weeks, but consider next year's London Perl Workshop.

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