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Full Discussion: Using GREP in IF Statement
Top Forums Shell Programming and Scripting Using GREP in IF Statement Post 302811511 by Ariean on Thursday 23rd of May 2013 03:36:56 PM
Old 05-23-2013
Is there a way for me to combine a grep command and an expression statement and pass the result to IF statement like below. I am still trying to make the below script work.

Code:
#!/bin/bash
PATH="/db_apps/informatica/infa951/server/infa_shared/BWParam/wf_GenerateXMLDataFile.txt"
UNINUM="92500"
echo $UNINUM

        if  /bin/grep -q "UNINUM" $PATH -a -z ${UNINUM}
      #if  [ `/bin/grep -q "UNINUM" $PATH` -a -z ${UNINUM} ]
        then
                echo "success"
        else
                echo "failure"
        fi

---------- Post updated at 03:36 PM ---------- Previous update was at 03:32 PM ----------

Quote:
Originally Posted by Ariean
Is there a way for me to combine a grep command and an expression statement and pass the result to IF statement like below. I am still trying to make the below script work.

Code:
#!/bin/bash
PATH="/db_apps/informatica/infa951/server/infa_shared/BWParam/wf_GenerateXMLDataFile.txt"
UNINUM="92500"
echo $UNINUM

        if  /bin/grep -q "UNINUM" $PATH -a -z ${UNINUM}
      #if  [ `/bin/grep -q "UNINUM" $PATH` -a -z ${UNINUM} ]
        then
                echo "success"
        else
                echo "failure"
        fi

I think i got it

Code:
#!/bin/bash
PATH="/db_apps/informatica/infa951/server/infa_shared/BWParam/wf_GenerateXMLDataFile.txt"
UNINUM="92500"
echo $UNINUM

        if  ! `/bin/grep -q "UNINUM" $PATH` && [ ! -z ${UNINUM} ]
        then
                echo "success"
        else
                echo "failure"
        fi

 

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LEARN ABOUT SUNOS

echo

echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME

       echo - echo arguments to standard output

SYNOPSIS

       /usr/ucb/echo [-n] [argument]

DESCRIPTION

       echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output.

       echo  is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi-
       ronment variables.

       For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows:

	 o  echo your current-working-directory's full pathname

	 o  pipe the output through tr to translate the path's embedded slash-characters into space-characters

	 o  pipe that output through wc -w for a count of the names in your path.

	      example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"

       See tr(1) and wc(1) for their functionality.

       The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be  invoked	if
       the  user  calls  echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape
       characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the  black-slashed  escape  characters,	and  ksh's
       echo() also understands a as the audible bell character; however, these commands do not have an -n option.

OPTIONS

       -n	Do not add the NEWLINE to the output.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), echo(1), ksh(1), sh(1), tr(1),  wc(1), attributes(5)

NOTES

       The -n option is a transition aid for BSD applications, and may not be supported in future  releases.

SunOS 5.10							    3 Aug 1994								  echo(1B)
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