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Simple ksh script problem

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# 1  
Old 09-09-2005
Simple ksh script problem
This is a search script that I have developed. It finds the records that I look for. However the only thing I want the program to do now is to display a message such as 'Not Found' to appear when a record is not found. So far when a search doesn't display a record, the screen is blank.

Code:
compfile=~/sample_data.txt
clear
bold=`tput smso`
offbold=`tput rmso`
echo $bold
tput cup 3 1; echo "UsedComputersRUs Menu- Search Computer"
echo $offbold
tput cup 4 1; echo "======================================"
tput cup 5 1
echo "Enter computer to search for: "
tput cup 5 31
read compdate
echo
grep -i $compnumber $compdate $model $manufacturer $price $compfile | tr ':' ' '
echo
echo "Press ENTER to continue..."
read continue

# 2  
Old 09-09-2005
after the grep statement:

Code:
if [ $? -eq 1 ]
then
  echo "No Matching Records Found"
fi

# 3  
Old 09-09-2005
I tested it acouple of times and still. nothing appears when, a search does not match a record.
# 4  
Old 09-09-2005
The following changes were done to my script, but still I dont get any message to appear once a search does not equal a record.

Code:
compfile=~/sample_data.txt
clear
bold=`tput smso`
offbold=`tput rmso`
echo $bold
tput cup 3 1; echo "UsedComputersRUs Menu- Search Computer"
echo $offbold
tput cup 4 1; echo "======================================"
tput cup 5 1
echo "Enter computer to search for: "
tput cup 5 31
read compdate
echo
grep -i $compnumber $compdate $model $manufacturer $price $compfile | tr ':' ' '
echo 
if [ $? -eq 1 ]
then
echo "No Matching Records Found"
fi
echo "Press ENTER to continue..."
read continue

# 5  
Old 09-09-2005
Quote:
Originally Posted by Warrior232
grep -i $compnumber $compdate $model $manufacturer $price $compfile | tr ':' ' '
echo
if [ $? -eq 1 ]
then
echo "No Matching Records Found"
fi
echo "Press ENTER to continue..."
read continue
Why the colored echo ? It always returns true.

When you remove that echo, you would still face the problem.

The reason why the echo "No Matching Records Found" wont happen is because all results are piped to tr and the actual exit status gets overwritten before the if statement.

Look at this post for a solution on how to catch an intermediate exit status.

Vino
# 6  
Old 09-09-2005
Once I remove the |tr ':" everything works fine. However the program is required to output the records without the colon. Since this is how each records is divided in the text file.
Last edited by Warrior232; 09-10-2005 at 01:11 PM..
# 7  
Old 09-09-2005
Code:
#!/bin/ksh
........
exec 3>&1
eval $(exec 4>&1 >&3 3>&-
  {
   grep -i $compnumber $compdate $model $manufacturer $price $compfile 2>&1 4&-; echo "exitCode=$?"; >&4
   } | tr ':' ' '
);

if [ ${exitCode} -eq 1 ]
then
echo "No Matching Records Found"
fi
echo "Press ENTER to continue..."

if [ $? -eq 1 ]
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