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Full Discussion: Grep out only today's date
Top Forums Shell Programming and Scripting Grep out only today's date Post 302645211 by clx on Wednesday 23rd of May 2012 06:20:58 AM
Old 05-23-2012
How about..

Code:
$ mon=$(date +'%b')
$ day=$(date +'%d')
$ grep -E "$mon[ ]+$day" xx
May  23 20:34:33 server_name Process: Error_message_timed_out
May 23 20:34:33 server_name Process: Error_message_timed_out
May    23 20:34:33 server_name Process: Error_message_timed_out
$ 
$ 
$ 
$ cat xx
May  23 20:34:33 server_name Process: Error_message_timed_out
May 23 20:34:33 server_name Process: Error_message_timed_out
other msg
other msg
May    23 20:34:33 server_name Process: Error_message_timed_out
May 19 20:34:33 server_name Process: Error_message_timed_out
other msg
May 19 20:34:33 server_name Process: Error_message_timed_out
May 19 20:34:33 server_name Process: Error_message_timed_out
May 19 20:34:33 server_name Process: Error_message_timed_out
$

You have to deal with the other patterns if any. Just update the pattern.
This User Gave Thanks to clx For This Post:
horhif
 

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LEARN ABOUT OSF1

strerr

strerr(8)						      System Manager's Manual							 strerr(8)

NAME

       strerr - Receives error messages from the STREAMS log driver

SYNOPSIS

       /usr/sbin/strerr [-a sys_admin_mail_name] [-d logdir]

PARAMETERS

       Specifies the mail name of the user to receive the message via mail.  This is the system administrator by default.  Specifies the directory
       to contain the error log file.  This is /var/adm/streams by default.

DESCRIPTION

       The strerr daemon receives error messages from the STREAMS log driver (strlog) for addition to the STREAMS error log files (error.mm.dd) in
       the  STREAMS  error logger directory (/var/adm/streams by default).  When first called, the strerr daemon creates the log file error.mm.dd.
       This is a daily log file, where mm indicates the month and dd indicates the day of the logged messages.	The  strerr  daemon  then  appends
       each error message that it subsequently receives from the STREAMS log driver to the log file.

       STREAMS	error  log  messages  have  the  following format: seq_num  std_time  ticks_time  flags  mod_ID  sub_ID  msg_text where: The error
       sequence number.  The time the message was sent, in the format hh:mm:ss.  The time the message was sent, measured in  machine  ticks  since
       the  last  boot.  Can be any of the following indicators: Indicates that the message has also been saved in the process's trace log.  Indi-
       cates that the message signaled a fatal error.  Indicates that the message is to be sent to the system administrator or specified user  via
       mail.   The module identification number of the trace message source.  The subidentification number of the trace message source.  The trace
       message text.

       The strerr daemon will run continuously until terminated by the user.

FILES

       The error log file or files on which strerr operates.

NOTES

       Only one strerr process can open the STREAMS log driver at a time.  This restriction is intended to maximize performance.

       The STREAMS error logging mechanism works best when it is not overused.	The strerr daemon can degrade STREAMS performance by affecting the
       response,  throughput,  and  other  behaviors  of the drivers and modules that invoke it.  The daemon will also fail to capture messages if
       drivers and modules generate messages at a higher rate than its optimum read rate.  Missing sequence numbers among the messages	in  a  log
       file indicate that messages have been lost.

RELATED INFORMATION

       Interfaces: strlog(7).  delim off

																	 strerr(8)
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