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Top Forums Shell Programming and Scripting Dividing single file by lines? Post 302182906 by anoc on Monday 7th of April 2008 06:42:38 PM
Old 04-07-2008
Dividing single file by lines?

Hi,

I have a situation where I need to append specific lines to a series of files only when specific lines are found. I can do this using sed -f, however because of the byte limitation for a sedscr file, I create multiple sedscr files (of 180 lines each due to the length of the strings) and do multiple passes. Sometimes I only do 5 passes, sometimes as many as 13.

As an example, each of these is 180 lines (except the last which has any remaining lines):

sedscr_1_of_11:
/string 1/a\
string 2


I've been doing this manually, but am now charged with creating a menu for another (non-technical) business area to execute. My problem is after I create one massive sedscr file (from a single input file), I don't know how to divvy up that single sedscr file into multiple 180-line files.

Any insight would be greatly appreciated.

Last edited by anoc; 04-07-2008 at 09:47 PM.. Reason: correction
 

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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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