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Top Forums UNIX for Dummies Questions & Answers unix: extract a specific list of lines from a file Post 302374371 by popescu1954 on Tuesday 24th of November 2009 09:03:29 AM
Old 11-24-2009
If the list of id-s is not very very very long, it could be as follows:
Code:
cat file | egrep "id1|id2|id3|...|idk"

It must take some precautions if you could find the strings of identifiers elsewhere in the line. For example, if the ID is the beginning of the line, you can do like this:
Code:
cat file | egrep "^id1|^id2|^id3|...|^idk"

 

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uuid(n) 							       uuid								   uuid(n)

__________________________________________________________________________________________________________________________________________________

NAME
uuid - UUID generation and comparison SYNOPSIS
package require Tcl 8.2 package require uuid ?1.0.1? ::uuid::uuid generate ::uuid::uuid equal id1 id2 _________________________________________________________________ DESCRIPTION
This package provides a generator of universally unique identifiers (UUID) also known as globally unique identifiers (GUID). This implemen- tation follows the draft specification from (1) although this is actually an expired draft document. COMMANDS
::uuid::uuid generate Creates a type 4 uuid by MD5 hashing a number of bits of variant data including the time and hostname. Returns the string represen- tation of the new uuid. ::uuid::uuid equal id1 id2 Compares two uuids and returns true if both arguments are the same uuid. EXAMPLES
% uuid::uuid generate b12dc22c-5c36-41d2-57da-e29d0ef5839c REFERENCES
[1] Paul J. Leach, "UUIDs and GUIDs", February 1998. (http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt) BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category uuid of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. KEYWORDS
GUID, UUID COPYRIGHT
Copyright (c) 2004, Pat Thoyts <patthoyts@users.sourceforge.net> uuid 1.0.1 uuid(n)
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