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Shell Programming and Scripting
adding characters end of line where line begins with..
Post 302477784 by ctsgnb on Monday 6th of December 2010 10:58:21 AM
12-06-2010
Code:
ESC :%s/^a,b,c.*/&x/
but the substitution will occure only in the lines matching the pattern defined between the first / / since this pattern match the whole line that start with a,b,c you can then use & to refer to that match before you add the expected x this avoid \( \) \1 grouping stuff
Last edited by ctsgnb; 12-06-2010 at 12:18 PM..
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LEARN ABOUT MINIX
grep
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)