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Top Forums Shell Programming and Scripting sed for first instance of a pattern Post 302787339 by hanson44 on Friday 29th of March 2013 08:23:49 AM
Old 03-29-2013
Quote:
Originally Posted by RudiC
Try a minor adaption to hanson44's proposal:
Code:
$ sed -n '/LOAD SUMMARY/,$ {p; /END LOAD SESSION/ q }' file

You are right. I originally wrote it as you suggest above. But I stripped it down to the simpler version because it worked on the test input. Should have considered more realistic test input, as you did. Smilie

---------- Post updated at 07:23 AM ---------- Previous update was at 07:17 AM ----------

Quote:
Originally Posted by Scrutinizer
Because the version of sed (GNU sed?) you are using happens to accept it without the semicolon or newline, but some other seds do not ..
Yes, I do use GNU sed. I had no idea that some other versions require the semicolon between a command and the closing curly bracket. Do you happen to know a particular version with that picky behavior?
 

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LOAD(7) 							   SQL Commands 							   LOAD(7)

NAME
LOAD - load a shared library file SYNOPSIS
LOAD 'filename' DESCRIPTION
This command loads a shared library file into the PostgreSQL server's address space. If the file has been loaded already, the command does nothing. Shared library files that contain C functions are automatically loaded whenever one of their functions is called. Therefore, an explicit LOAD is usually only needed to load a library that modifies the server's behavior through ``hooks'' rather than providing a set of functions. The file name is specified in the same way as for shared library names in CREATE FUNCTION [create_function(7)]; in particular, one can rely on a search path and automatic addition of the system's standard shared library file name extension. See in the documentation for more information on this topic. Non-superusers can only apply LOAD to library files located in $libdir/plugins/ -- the specified filename must begin with exactly that string. (It is the database administrator's responsibility to ensure that only ``safe'' libraries are installed there.) COMPATIBILITY
LOAD is a PostgreSQL extension. SEE ALSO
CREATE FUNCTION [create_function(7)] SQL - Language Statements 2010-05-14 LOAD(7)
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