Non case sensitive searches in Korn Shell

I have a tab delimited file that has the following line in it:

Tires   $69.95   InStock

!#/usr/bin/ksh

echo "Enter the item you wish to search for: \n"
      read item

echo "Enter the file to be used: \n"
      read file

echo "Searching for $item from file $file"

grep "$item" $file


I need to to accept upper or lower case on first column, then out put should be a combination of the three fields:

The filed tires you searched for is InStock and costs $69.95.

Thanks.
elwayisgodAsked:
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jonkreislerConnect With a Mentor Commented:
The only way I can see that happening is if both "filename" and "newfile" are identical.

after "read newfile":

if [ "$filename" = "$newfile" ]
then
 echo "source and destination files cannot be the same file!"
 exit
fi
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sunnycoderCommented:
Hi elwayisgod,

use -i option with grep

-i, --ignore-case
Ignore case distinctions in both the PATTERN and the input files

Sunnycoder
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jonkreislerCommented:
How about:

found=`grep -i $item $file`
if [ "$found" != "" ]
then
 echo $found |awk '  {printf "The field " $1 " you searched for is " $3 " and costs " $2 "\n"}'
else
 echo "The field" $item "was not found"
fi
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elwayisgodAuthor Commented:
That worked perfectly. Just had to put a space after the | before the awk.  Now If I have the file data.hw4 and I need to delete a item from it and re-create it, I get stuck.  Not sure to use awk etc.. Can't find a delet row....Any help is appreciated.

Sam
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jonkreislerCommented:
Sorry about the typo, I was typing quickly.

The "v" option of grep will allow you to find all lines EXCEPT those containing string.
So, if the item you want to delete is in the variable "item"...

grep  -iv   $item   data.hw4   >some.temporary.file

(safer to put the output in some other file and then move it back later than to output directly to the same file.)
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elwayisgodAuthor Commented:
Here's my code: It deletes my data file, which is a problem.  

#!/bin/ksh

echo "Enter the source data file you wish to manipulate: \n"
      read filename

echo "Enter the destination data file you wish to create: \n"
      read newfile

echo "What is the product you want to delete: \n"
      read product

grep -iv $product $filename >$newfile

echo "New database contains the follwing items: \n"
cat $newfile
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elwayisgodAuthor Commented:
It works great. Thanks. I'm just learning this and get stuck. I'm a damn Accountant for god sakes :)

I appreciate it.

Sam
elwayisgod@hotmail.com
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jonkreislerCommented:
You are very welcome, Sam.
That's why we're here; to help when it's needed.

Jon
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