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Full Discussion: Find a line containing a string.
Top Forums Programming Find a line containing a string. Post 302472359 by cbreiny on Wednesday 17th of November 2010 02:16:47 AM
Old 11-17-2010
Find a line containing a string.
Hello. I have a large file that contains a lot of gibberish and also a lot of http addresses. How can i read the file, take out the http addresses, and write each one of them on one line each into another file?

It looks something like this.

gibberishgibberishgibberishgibberishgibberish"http://yadayada.com"gibberishgibberishgibberishgibberish"http://yadayada2.com"gibberishgibberish

I just want to know how to extract the http addresses from the file, and write them to another file.

Any programming language is fine. I just want to know how to do this.

Thanks in advance.
 

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LEARN ABOUT DEBIAN

shorewall6-maclist

SHOREWALL6-MACLIST(5)						  [FIXME: manual]					     SHOREWALL6-MACLIST(5)

NAME

       maclist - shorewall6 MAC Verification file

SYNOPSIS

       /etc/shorewall6/maclist

DESCRIPTION

       This file is used to define the MAC addresses and optionally their associated IPv6 addresses to be allowed to use the specified interface.
       The feature is enabled by using the maclist option in the shorewall6-interfaces[1](5) or shorewall6-hosts[2](5) configuration file.

       The columns in the file are as follows.

       DISPOSITION - {ACCEPT|DROP|REJECT}[:log-level]
	   ACCEPT or DROP (if MACLIST_TABLE=filter in shorewall6.conf[3](5), then REJECT is also allowed). If specified, the log-level causes
	   packets matching the rule to be logged at that level.

       INTERFACE - interface
	   Network interface to a host.

       MAC - address
	   MAC address of the host -- you do not need to use the shorewall6 format for MAC addresses here. If IP ADDRESSESES is supplied then MAC
	   can be supplied as a dash (-)

       IP ADDRESSES (Optional) - [address[,address]...]
	   If specified, both the MAC and IP address must match. This column can contain a comma-separated list of host and/or subnet addresses.
	   If your kernel and ip6tables have iprange match support then IP address ranges are also allowed. Similarly, if your kernel and
	   ip6tables include ipset support than set names (prefixed by "+") are also allowed.

FILES

       /etc/shorewall6/maclist

SEE ALSO

       http://shorewall.net/MAC_Validation.html

       http://shorewall.net/configuration_file_basics.htm#Pairs

       shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5), shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5),
       shoewall6-netmap(5),shorewall6-params(5), shorewall6-policy(5), shorewall6-providers(5), shorewall6-rtrules(5), shorewall6-routestopped(5),
       shorewall6-rules(5), shorewall6.conf(5), shorewall6-secmarks(5), shorewall6-tcclasses(5), shorewall6-tcdevices(5), shorewall6-tcrules(5),
       shorewall6-tos(5), shorewall6-tunnels(5), shorewall6-zones(5)

NOTES

	1. shorewall6-interfaces
	   http://www.shorewall.net/manpages6/shorewall6-interfaces.html

	2. shorewall6-hosts
	   http://www.shorewall.net/manpages6/shorewall6-hosts.html

	3. shorewall6.conf
	   http://www.shorewall.net/manpages6/shorewall6.conf.html

[FIXME: source] 						    06/28/2012						     SHOREWALL6-MACLIST(5)
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