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Full Discussion: Backing out of a script if command doesn't return any results?
Top Forums Shell Programming and Scripting Backing out of a script if command doesn't return any results? Post 302394758 by gaurav1086 on Friday 12th of February 2010 11:58:20 AM
Old 02-12-2010
Hello,

You might be referring to exit status that is stored in $? but you are using $! .

Please refer the manual once.

When the awks make presence all the greps should disappear. so you can modify the code line as ->

Code:
INC_BY=`ypcat passwd | awk -F":" '$1==$RECIPENT{print $1 " " $5} | wc -l`

Or if you only want to count the no of occurances of the match -

Code:
INC_BY=`ypcat passwd | grep -i -c  "$RECIPIENT"

As your awk liner is writing all to wc and not stdout so you can simply trim it off.

Hope this helps.

Regards,
Gaurav.
Last edited by gaurav1086; 02-12-2010 at 01:10 PM..
 

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LEARN ABOUT PHP

ypcat

ypcat(1)							   User Commands							  ypcat(1)

NAME

       ypcat - print values in a NIS database

SYNOPSIS

       ypcat [-kx] [-d ypdomain] mname

DESCRIPTION

       The ypcat command prints out values in the NIS name service map specified by mname, which may be either a map name or a map nickname. Since
       ypcat uses the NIS network services, no NIS server is specified.

       Refer to ypfiles(4) for an overview of the NIS name service.

OPTIONS

       -k	       Display the keys for those maps in which the values are null or the key is not part of the value.  None of the maps derived
		       from files that have an ASCII version in /etc fall into this class.

       -d ypdomain     Specify a domain other than the default domain.

       -x	       Display map nicknames.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       |Availability		     |SUNWnisu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ypmatch(1), ypfiles(4), attributes(5)

SunOS 5.10							    23 Jan 1995 							  ypcat(1)
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