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Full Discussion: Variable Validation
Top Forums Shell Programming and Scripting Variable Validation Post 302604955 by balajesuri on Tuesday 6th of March 2012 11:07:44 AM
Old 03-06-2012
Ah, you've updated the post while I was working on your code. Anyway, I'll post my solution too.

I presume you want to do these checks over all lines of an inputfile containing the pipe delimited data, and not just one line. In such case, your awk statement would greedily fetch all the $1 and $2's of inputfile.

Code:
#! /bin/bash

while IFS='|' read a b c
do
    SrcFileByte=${a//\"/}
    CtrlFileCnt=${b//\"/}
    if [ -z $CtrlFileCnt ] && [ -z $SrcFileByte ]; then
        echo "File Count Check and Byte Count Check is Skipped";
    else
        if [ -z $CtrlFileCnt ]; then
            echo "File Count Check is skipped";
        else 
            if [ -z $SrcFileByte ]; then
                echo "File Byte Check is skipped";
            else
                echo "Both are checked";
            fi
        fi
    fi
done < tab_delimited_inputfile

 

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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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