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Full Discussion: Replacing Awk with One-liner Perl
Top Forums Shell Programming and Scripting Replacing Awk with One-liner Perl Post 302584454 by SkySmart on Friday 23rd of December 2011 09:36:11 AM
Old 12-23-2011
Quote:
Originally Posted by balajesuri
Are you looking for something like this?

Code:
user@ubuntu:~/programs$ cat input
This is the first line of log file
Dec 23
This is the third line
This is the fourth line

Code:
user@ubuntu:~/programs$ perl -ne '(/^Dec 23/)&&($p=1);($p==1)&&(print)' input
Dec 23
This is the third line
This is the fourth line

The Log looks likes something like this:

Code:
Dec 23 20:54:84 This is the first line of the log.  This is great. I am so happy.
Dec 23 20:54:14 This is the sec line of the log.  This is great. I am so happy.
Dec 23 20:54:14 This is the thir line of the log.  This is great. I am so happy.
Dec 23 20:54:14 This is the fou line of the log.  This is great. I am so happy.
Dec 23 20:54:14 This is the fifth line of the log.  This is great. I am so happy.

 

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LEARN ABOUT POSIX

logadm.conf

logadm.conf(4)							   File Formats 						    logadm.conf(4)

NAME

       logadm.conf - configuration file for logadm command

SYNOPSIS

       /etc/logadm.conf

DESCRIPTION

       /etc/logadm.conf  is  the default configuration file for the log management tool logadm(1M). Comments are allowed using the pound character
       (#) and extend to the end of line. Each non-comment line has the form:

       logname options

       where logname is the name of the entry and options are the default command line options for the logadm command. The name of the	entry  may
       be  the	same  as  the  name of the log file, or a log file name may be given in the options section of the entry. Long lines may be folded
       using a backslash followed by a newline to continue an entry on the next line. Single or double quotes may be used  to  protect	spaces	or
       alternate-style quotes in strings.

       The  preferred  method  for  changing  /etc/logadm.conf	is to use the -V, -w, and -r options to the logadm(1M) command, which allow you to
       lookup an entry, write an entry, or remove an entry from /etc/logadm.conf.

       A full description of how and when /etc/logadm.conf is used and sample entries are found in logadm(1M).

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsr			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       logadm(1M), attributes(5)

SunOS 5.10							    6 Dec 2001							    logadm.conf(4)
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