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Full Discussion: Grep fields from file
Top Forums Shell Programming and Scripting Grep fields from file Post 302992502 by jim mcnamara on Sunday 26th of February 2017 09:42:29 PM
Old 02-26-2017
This reads from file2 first, then if file1 has a match in file2 the line does not print. Using awk.
Code:
awk '
       FILENAME=="file2" { arr[ $1 $3 $4 $5 ]++; next }
       FILENAME=="file1"  { key=$1 $3 $4 $5; if( ! key in arr) {print $0}} 
      ' file2 file1 >newfile

newfile has the changes from file1.
 

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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), bzip2(1), or lzop(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 uncompressed 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), lzop(1), zdiff(1)

BUGS

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

Tukaani 							    2011-03-19								 XZDIFF(1)
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