awk to update file with numerical difference if condition is met Post: 302995133

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Top Forums Shell Programming and Scripting awk to update file with numerical difference if condition is met Post 302995133 by Don Cragun on Saturday 1st of April 2017 05:28:48 AM

04-01-2017

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You have seen examples that showed you how to read one file and gather information from that file to be used while processing a second file. You have seen examples that showed you how to split a field into subfields based on a subfield delimiter (in this case the minus sign). You have seen examples that showed you how to create arrays from fields in a line (or two arrays with one array containing data and a related array containing counts of elements in the first array). With more than two years of learning from the examples we have provided in 340 threads, we would like to think that you could put those pieces together to solve this problem on your own (or at least get close to it).

Please give it a try and, if you get stuck, show us what you have accomplished and explain what you can't get to work. We want to help you learn how to write your own awk scripts; not to act as your unpaid programming staff.

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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)