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Full Discussion: Compare one files with strings from another + remove lines
Top Forums Shell Programming and Scripting Compare one files with strings from another + remove lines Post 302582951 by sdf on Monday 19th of December 2011 06:27:07 AM
Old 12-19-2011
Compare one files with strings from another + remove lines
Have two files and want to compare the content of file1 with file2. When matched remove the line.
Code:
awk 'NR==FNR {b[$0]; next} !(b in $0)' file1 file2

file1
HTML Code:
1. if match
2. remove
file2
HTML Code:
1. this line has to be removed if match
2. this line has a match, remove
3. this line has no match, no removing
The code does not remove the matches.
 

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LEARN ABOUT LINUX

xzdiff

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 xzdiff 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(1) or diff(1).  If only one file is specified, then the files compared are file1 (which must have a suffix of  a  supported
       compression 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(1) or diff(1) 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 							    2010-09-27								 XZDIFF(1)
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