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Full Discussion: Regex for a valid URL
Top Forums UNIX for Beginners Questions & Answers Regex for a valid URL Post 302986704 by RavinderSingh13 on Tuesday 29th of November 2016 06:06:41 AM
Old 11-29-2016
Quote:
Originally Posted by Meeran Rizvi
Hi guys,
What is the regex to check for only valid URL from a file using grep?
Hello Meeran,

As a starting point could you please try following and let me know if this helps you. Let's say we have following Input_file.
Following is the code for same.
Code:
awk '{match($0,/.*[:]\/\/.*\/[[:alnum:]]+/);print substr($0,RSTART,RLENGTH);}'  Input_file

Output will be as follows.
Thanks,
R. Singh

Last edited by RavinderSingh13; 11-29-2016 at 07:15 AM..
 

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httppower(8)							     powerman							      httppower(8)

NAME
httppower - communicate with HTTP based power distribution units SYNOPSIS
httppower [--url URL] DESCRIPTION
httppower is a helper program for powerman which enables it to communicate with HTTP based power distribution units. It is run interac- tively by the powerman daemon. OPTIONS
-u, --url URL Set the base URL. INTERACTIVE COMMANDS
The following commands are accepted at the httppower> prompt: auth user:pass Authenticate to the base URL with specified user and password, using ``basic'' HTTP authentication which sends the user and password over the network in plain text. seturl URL Set the base URL. Overrides the command line option. get [URL-suffix] Send an HTTP GET to the base URL with the optional URL-suffix appended. post [URL-suffix] key=val[&key=val]... Send an HTTP POST to the base URL with the optional URL-suffix appended, and key-value pairs as argument. FILES
/usr/sbin/httppower /etc/powerman/powerman.conf ORIGIN
PowerMan was originally developed by Andrew Uselton on LLNL's Linux clusters. This software is open source and distributed under the terms of the GNU GPL. SEE ALSO
powerman(1), powermand(8), httppower(8), plmpower(8), vpcd(8), powerman.conf(5), powerman.dev(5), powerman-devices(7). http://sourceforge.net/projects/powerman powerman-2.3.5 2009-02-09 httppower(8)
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