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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 302584422 by SkySmart on Friday 23rd of December 2011 07:39:49 AM
Old 12-23-2011
Quote:
Originally Posted by balajesuri
1. I don't think your awk one-liner would work as you're not passing $TOFDAYM and $TOFDAYD from shell to awk.
2. When you say 0 at the end, it would print the line regardless of whether the condition is met or not.

What is your requirement exactly? Please provide a sample input and sample output. It would help us to build a perl one-liner.

thank you for your response.

this is to be used on a log file. i.e., the /var/log/messages file.

what i want to do is search for a date, like "Dec 23". such a date would of course be the first entry in the lines of the log. hence the need for the "^".

but here's what i need to do. i need to search for a date in a log file, and when that date is found, i need to spit out to screen every line/record that comes after that date including the first matching line.

the above perl one liner provided by itkamaraj didn't seem to work. it just hung there and didn't do anything. anymore suggestions?

thanks a lot guys
 

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LEARN ABOUT SUNOS

sulog

sulog(4)							   File Formats 							  sulog(4)

NAME

       sulog - su command log file

SYNOPSIS

       /var/adm/sulog

DESCRIPTION

       The  sulog file is a record of all attempts by users on the system  to execute the su(1M) command.  Each time  su(1M) is executed, an entry
       is added to the sulog file.

       Each entry in the sulog file is a single line of the form:

	      SU date time
	      result port user-newuser

       where

       date	       The month and date su(1M) was executed.	date is displayed in the form  mm/dd where  mm is the month number and dd  is  the
		       day number in the month.

       time	       The  time   su(1M) was executed. time is displayed in the form  HH/MM where  HH is the hour number (24 hour system) and	MM
		       is the minute number.

       result	       The result of the  su(1M) command.  A ` + ' sign is displayed in this field if the su attempt was successful; otherwise	 a
		       ` - ' sign is displayed.

       port	       The name of the terminal device from which  su(1M) was executed.

       user	       The user id of the user executing the  su(1M) command.

       newuser	       The user id being switched to with  su(1M).

EXAMPLES

       Example 1: A sample sulog file.

       Here is a sample sulog file:

       SU 02/25 09:29 + console root-sys
       SU 02/25 09:32 + pts/3 user1-root
       SU 03/02 08:03 + pts/5 user1-root
       SU 03/03 08:19 + pts/5 user1-root
       SU 03/09 14:24 - pts/5 guest3-root
       SU 03/09 14:24 - pts/5 guest3-root
       SU 03/14 08:31 + pts/4 user1-root

FILES

       /var/adm/sulog	       su log file

       /etc/default/su	       contains the default location of  sulog

SEE ALSO

       su(1M)

SunOS 5.10							    6 Jun 1994								  sulog(4)
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