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Top Forums UNIX for Beginners Questions & Answers awk with sed to combine lines and remove specific odd # pattern from line Post 303033802 by Scrutinizer on Thursday 11th of April 2019 06:56:47 PM
Old 04-11-2019
Another option to try:
Code:
awk '/xxxx/{print $2, p} {p=A[NR]=$0} END{for(i=2; i>=0; i--) print A[NR-i]}' file

This User Gave Thanks to Scrutinizer For This Post:
 

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GREP(1) 						      General Commands Manual							   GREP(1)

NAME
grep - search a file for lines containing a given pattern SYNOPSIS
grep [-elnsv] pattern [file] ... OPTIONS
-e -e pattern is the same as pattern -c Print a count of lines matched -i Ignore case -l Print file names, no lines -n Print line numbers -s Status only, no printed output -v Select lines that do not match EXAMPLES
grep mouse file # Find lines in file containing mouse grep [0-9] file # Print lines containing a digit DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1 occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is returned. SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9). GREP(1)
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