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Top Forums Shell Programming and Scripting search and replace, when found, delete multiple lines, add new set of lines? Post 302576058 by DeuceLee on Wednesday 23rd of November 2011 01:39:12 PM
Old 11-23-2011
search and replace, when found, delete multiple lines, add new set of lines?

hey guys,

I tried searching but most 'search and replace' questions are related to one liners.

Say I have a file to be replaced that has the following:

Code:
$ cat testing.txt
TESTING
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
ENDTESTING

This is the input file:

Code:
$ cat input.txt
RRR
SSS
TTT

What I want to do is, search testing.txt for "EEE". When I find "EEE", I want to delete "EEE" and two lines below it ending in "GGG". I want to replace "EEE" through "GGG" with the input.txt file. So the ending results will look like:

Code:
$ cat testing.txt
TESTING
AAA
BBB
CCC
DDD
RRR
SSS
TTT
HHH
ENDTESTING

I know how to search for single lines of code and replace that line with something else.

How do I say "find this line, delete three lines down, replace it with text from this input file"?

thanks.

---------- Post updated at 02:39 PM ---------- Previous update was at 02:32 PM ----------

I spoke too soon. I did find this post:

It's the very last post of the thread. I'll try that.

Sorry, this should have been in the "Dummies" subforum too. Smilie
 

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AUSEARCH_ADD_TIMESTAMP_ITEM(3)					  Linux Audit API				    AUSEARCH_ADD_TIMESTAMP_ITEM(3)

NAME
ausearch_add_timestamp_item - build up search rule SYNOPSIS
#include <auparse.h> int ausearch_add_timestamp_item(auparse_state_t *au, const char *op, time_t sec, unsigned milli, ausearch_rule_t how) DESCRIPTION
ausearch_add_timestamp_item adds an event time condition to the current audit search expression. The search conditions can then be used to scan logs, files, or buffers for something of interest. The op parameter specifies the desired comparison. Legal op values are <, <=, >=, > and =. The left operand of the comparison operator is the timestamp of the examined event, the right operand is specified by the sec and milli parameters. The how value determines how this search condition will affect the existing search expression if one is already defined. The possible val- ues are: AUSEARCH_RULE_CLEAR Clear the current search expression, if any, and use only this search condition. AUSEARCH_RULE_OR If a search expression E is already configured, replace it by (E || this_search_condition). AUSEARCH_RULE_AND If a search expression E is already configured, replace it by (E && this_search_condition). RETURN VALUE
Returns -1 if an error occurs; otherwise, 0 for success. APPLICATION USAGE
Use ausearch_add_item(3) and ausearch_add_interpreted_item(3) to add conditions that check audit record fields. Use ausearch_add_expres- sion(3) to add complex search expressions using a single function call. SEE ALSO
ausearch_add_expression(3), ausearch_add_item(3), ausearch_add_interpreted_item(3), ausearch_add_regex(3), ausearch_set_stop(3), ause- arch_clear(3), ausearch_next_event(3), ausearch-expression(5). AUTHOR
Miloslav Trmac Red Hat Nov 2007 AUSEARCH_ADD_TIMESTAMP_ITEM(3)
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