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Full Discussion: Korn Shell Loop question
Top Forums Shell Programming and Scripting Korn Shell Loop question Post 92260 by mona on Thursday 8th of December 2005 10:31:06 PM
Old 12-08-2005
Code:
awk '{print FS,$1}' >> var1
awk '{print FS,$2}' >> var2

You are redirecting the output to a file and not to a variable. And nowhere you are using the variable "line" in the awk statement. Change the above 2 lines as below and try again.

Code:
var1=`echo $line | awk '{print FS,$1}'`
var2=`echo $line |awk '{print FS,$2}'`

you can also use cut instead of awk to read the first and second word.

Code:
#! /bin/ksh
while read line
do
var1=`echo $line | cut -f1 -d" "` 
var2=`echo $line | cut -f2 -d" "`
   if [[ $var1 = AAA ]]
   then
           echo group1 $var2
   elif [[ $var1 =  CCC ]]
   then
           echo group2 $var2
    fi 
done < file.txt

you can also read the words in the while loop itself

Code:
#! /bin/ksh
while read var1 var2
do
   if [[ $var1 = AAA ]]
   then
           echo group1 $var2
   elif [[ $var1 =  CCC ]]
   then
           echo group2 $var2
    fi 
done < file.txt

 

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LEARN ABOUT DEBIAN

struct::compare

Compare(3pm)						User Contributed Perl Documentation					      Compare(3pm)

NAME

       Struct::Compare - Recursive diff for perl structures.

SYNOPSIS

	   use Struct::Compare;
	   my $is_different = compare($ref1, $ref2);

DESCRIPTION

       Compares two values of any type and structure and returns true if they are the same. It does a deep comparison of the structures, so a hash
       of a hash of a whatever will be compared correctly.

       This is especially useful for writing unit tests for your modules!

PUBLIC FUNCTIONS

       o   $bool = compare($var1, $var2)

	   Recursively compares $var1 to $var2, returning false if either structure is different than the other at any point. If both are
	   undefined, it returns true as well, because that is considered equal.

BUGS
/NEEDED ENHANCEMENTS
       o   blessed references

	   compare currently does not deal with blessed references. I need to look into how to deal with this.

LICENSE

       (The MIT License)

       Copyright (c) 2001 Ryan Davis, Zen Spider Software

       Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the
       "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish,
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       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
       MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
       CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
       SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

AUTHOR

       Ryan Davis <ryand-cmp@zenspider.com> Zen Spider Software <http://www.zenspider.com/ZSS/>

perl v5.12.4							    2011-07-04							      Compare(3pm)
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