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Top Forums UNIX for Dummies Questions & Answers sed, join lines that do not match pattern Post 302633587 by krsnadasa on Wednesday 2nd of May 2012 08:17:12 AM
Old 05-02-2012
sed, join lines that do not match pattern

Hi jlliagre,

great can you please explain this awk completly how it works here in joining lines.
Code:
awk '/stable_pattern$/ {print;next;} {printf("%s",$0);}' text

I am confuse for
Code:
next

stmt and other
Code:
printf

how it is joinging if search fails for a line.

Thanks
Krsnadasa
 

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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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