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Full Discussion: line break if string exceeds 100chars
Top Forums Shell Programming and Scripting line break if string exceeds 100chars Post 302491250 by pravin27 on Thursday 27th of January 2011 04:39:30 AM
Old 01-27-2011
Code:
awk 
-v yr=`date '+%Y'` # Sets the variable yr to the value current year before execution of the program begins
'BEGIN {
m["Jan"]="01"
m["Feb"]="02"
m["Mar"]="03"
m["Apr"]="04"
m["May"]="05"
m["Jun"]="06"
m["Jul"]="07"
m["Aug"]="08"
m["Sep"]="09"
m["Oct"]="10"
m["Nov"]="11"
m["Dec"]="12"
}              #the BEGIN block is evaluated before awk starts processing the input file, We initialize array "m" with index as month and value as month's number 
{	dt=m[$1]"/"$2"/"yr FS $3; # here $1 = Jan,$2= 26 and $3=12:40:56 as per your input file, store date as per your formate into varibale dt. 
	printf dt FS;  # print date and FS (filed seperator)
	l=18; # here l=18 , length of date and time which we alerady printed.
	for(i=4;i<=NF;i++) # start for loop from field 4
	{
		l+=length($i)+1; # adding length of field and 1 for field seperator
		if(l>100 && flg == 1) # if this condition is true means we already print 100 char.
		{flg=0;l=18;printf RS dt FS $i FS} # reset the flag and length variable and print date time and field on new line 
	else {flg=1;printf $i FS } # condition is false then print field on same line
	} 
printf "\n"}' inputfile

 

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LEARN ABOUT SUNOS

strclean

strclean(1M)						  System Administration Commands					      strclean(1M)

NAME

       strclean - STREAMS error logger cleanup program

SYNOPSIS

       strclean [-a age] [-d logdir]

DESCRIPTION

       strclean  is used to clean up the STREAMS error logger directory on a regular basis (for example, by using cron. By default, all files with
       names matching error.* in  /var/adm/streams that have not been modified in the last three days are removed.

OPTIONS

       The following options are supported:

       -aage	       The maximum age in days for a log file can be changed using the -a option.

       -dlogdir        A directory other than /var/adm/streams can be specified using the -d option.

EXAMPLES

       Example 1: A sample of using the strclean command.

       This example has the same result as running  strclean with no arguments:

       example%  strclean -d /var/adm/streams -a 3

FILES

       /var/adm/streams/error.*

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cron(1M), strerr(1M), attributes(5)

       STREAMS Programming Guide

NOTES

       strclean is typically run from cron on a daily or weekly basis.

SunOS 5.10							    14 Sep 1992 						      strclean(1M)
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