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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:
 

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wsprintf(3C)						   Standard C Library Functions 					      wsprintf(3C)

NAME
wsprintf - formatted output conversion SYNOPSIS
#include <stdio.h> #include <widec.h> int wsprintf(wchar_t *s, const char *format, /* arg */ ... );); DESCRIPTION
The wsprintf() function outputs a Process Code string ending with a Process Code (wchar_t) null character. It is the user's responsibility to allocate enough space for this wchar_t string. This returns the number of Process Code characters (excluding the null terminator) that have been written. The conversion specifications and behavior of wsprintf() are the same as the regular sprintf(3C) function except that the result is a Process Code string for wsprintf(), and on Extended Unix Code (EUC) character string for sprintf(). RETURN VALUES
Upon successful completion, wsprintf() returns the number of characters printed. Otherwise, a negative value is returned. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------------------------------------+ |ATTRIBUTE TYPE ATTRIBUTE VALUE | |MT-Level MT-Safe | +-----------------------------------------------------------+ SEE ALSO
wsscanf(3C), printf(3C), scanf(3C), sprintf(3C), attributes(5) SunOS 5.11 29 Dec 1996 wsprintf(3C)
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