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Top Forums Shell Programming and Scripting Efficient way to search array in text file by awk Post 302958295 by RudiC on Wednesday 21st of October 2015 04:21:24 AM
Old 10-21-2015
If you want to find one of 10k items in a large file, there's no straight, easy way to avoid comparing each item against each line in file. What you can do is break when found.

You could try a binary search algorithm.
 

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DWWW(1) 							      Debian								   DWWW(1)

NAME
dwww - access documentation via WWW SYNOPSIS
http://localhost/dwww/index.html dwww dwww program-name | package-name DESCRIPTION
A typical Linux system has documentation in many formats (manual pages, info files, READMEs, and so on). dwww makes it possible to access all of these via the same interface, a WWW browser. This makes it easier to use the documentation. To use dwww, load the URL given in the SYNOPSIS. If you have a web browser installed, you can also just run the dwww command which loads the URL. If BROWSER environment variable is set, dwww uses sensible-browser(1) to load the URL. Otherwise, dwww first tries to use browser specified by DWWW_BROWSER or DWWW_X11_BROWSER configuration variable (cf. dwww(7)), than will use sensible-browser(1) command. If optional argument program-name or package-name is specified, dwww will search all documentation related to given program or package. ENVIRONMENT
BROWSER Program used to load the above mentioned URL. FILES
/etc/dwww/dwww.conf Configuration file for dwww. SEE ALSO
dwww-find(8), dwww(7), sensible-browser(1). AUTHOR
Lars Wirzenius <liw@iki.fi>. Modified by Robert Luberda <robert@debian.org>. Bugs should be reported via the Debian Bug Tracking System at <URL:http://bugs.debian.org/>. dwww is licensed via the GNU General Public License. While it has been written for Debian, porting it to other systems is strongly encour- aged. dwww 1.11.1 February 15th, 2009 DWWW(1)
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