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Full Discussion: [HELP] - Delete rows on a CSV file
Top Forums Shell Programming and Scripting [HELP] - Delete rows on a CSV file Post 302327471 by Sadarrab on Sunday 21st of June 2009 07:28:02 PM
Old 06-21-2009
Java
Quote:
Originally Posted by ghostdog74
Code:
# awk 'FNR==NR{a[$0];next}!($0 in a)' file2 file1
1
4

So i made this...

# awk 'FNR==NR{a[$0];next}!($0 in a)' file2 file1 > file3

I get all the numbers that are not repeaded between file2 and file1 and i write them in a new file.
But i didn't urderstand what this means "'FNR==NR...".

Thanks a lot.
 

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LEARN ABOUT SUSE

lzcmp

XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME

       xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files

SYNOPSIS

       xzcmp [cmp_options] file1 [file2]
       xzdiff [diff_options] file1 [file2]
       lzcmp [cmp_options] file1 [file2]
       lzdiff [diff_options] file1 [file2]

DESCRIPTION

       xzcmp  and  xdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options specified are passed
       directly to cmp or diff.  If only one file is specified, then the files compared are file1 (which must have a suffix of	a  supported  com-
       pression  format)  and  file1 from which the compression format suffix has been stripped.  If two files are specified, then they are uncom-
       pressed if necessary and fed to cmp(1) or diff(1).  The exit status from cmp or diff is preserved.

       The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.

SEE ALSO

       cmp(1), diff(1), xz(1), gzip(1), bzip2(1), zdiff(1)

BUGS

       Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.

Tukaani 							    2009-07-05								 XZDIFF(1)
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