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Full Discussion: how do I filter double lines from a txt file
Top Forums Shell Programming and Scripting how do I filter double lines from a txt file Post 302107564 by I-1 on Monday 19th of February 2007 08:26:27 AM
Old 02-19-2007
how do I filter double lines from a txt file
Hi,

I have a file with the following:

access-list.txt

Code:
router1
access-list 1 permit any any
access-list 1 deny any any
router2
access-list 2 permit any any
access-list 2 deny any any
router3
access-list 3 permit any any
access-list 3 deny any any


I want to hava an output that I only see 1 line for the access-lists.
So the output has to be:

Code:
router1
access-list 1 permit any any
router2
access-list 2 permit any any
router3
access-list 3 permit any any

How do I do this?
 

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LEARN ABOUT PHP

ftphosts

ftphosts(4)							   File Formats 						       ftphosts(4)

NAME

       ftphosts - FTP Server individual user host access file

SYNOPSIS

       /etc/ftpd/ftphosts

DESCRIPTION

       The ftphosts file is used to allow or deny access to accounts from specified hosts. The following access capabilities are supported:

       allow username addrglob [addrglob...]

	   Only allow users to login as username from host(s) that match addrglob.

       deny username addrglob [addrglob...]

	   Do not allow users to login as username from host(s) that match addrglob.

       A username of * matches all users. A username of anonymous or ftp specifies the anonymous user.

       addrglob  is  a	regular  expression that is matched against hostnames or IP addresses. addrglob may also be in the form address:netmask or
       address/CIDR, or be the name of a file that starts with a slash ('/') and contains additional address  globs.  An  exclamation  mark  (`!')
       placed before the addrglob negates the test.

       The first allow or deny entry in the ftphosts file that matches a username and host is used. If no entry exists for a username, then access
       is allowed. Otherwise, a matching allow entry is required to permit access.

EXAMPLES

       You can use the following ftphosts file to allow anonymous access from any host except those on the class A network 10, with the  exception
       of 10.0.0.* IP addresses, which are allowed access:

       allow   ftp   10.0.0.*
       deny    ftp   10.*.*.*
       allow   ftp   *

       10.0.0.* can be written as 10.0.0.0:255.255.255.0 or 10.0.0.0/24.

FILES

       /etc/ftpd/ftphosts

ATTRIBUTES

       See attributes(5)  for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWftpr			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |External			   |
       +-----------------------------+-----------------------------+

SEE ALSO

	in.ftpd(1M), ftpaccess(4), attributes(5)

SunOS 5.10							    1 May 2003							       ftphosts(4)
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