UNIX for Dummies Questions & Answers

Hi All,

I am checking for a empty input file to do some further action , but I am getting exit status 0 in both the cases , for empty and non empty file both.

The value of $? is coming 0 in if part also and else part too.

#!/bin/ksh
if [[ -s $DD_INDD ]]; then
echo "data"
# exit 0
echo "$?"
else
echo "****************************"
echo "**** ERROR - FILE EMPTY ****"
echo "****************************"
# exit 99
echo "$?"
fi;
exit

The $? value in your script is coming from the preceding successful "echo" statement.
If you want to see the reply from "test", try:
test -s $DD_INDD ; ERROR=$?
Then check the reply value in $ERROR.

thnx for the reply , now i m giving like this

#!/bin/ksh
if [[ -s "$DD_INDD" ]]; then
echo "data"
ERROR=$?
echo "$ERROR"
else
echo "****************************"
echo "**** ERROR - FILE EMPTY ****"
echo "****************************"
ERROR=$?
echo "$ERROR"
fi;
exit

agaiin the same issue

Again, $? gives the return value of the last command.

This statement:

Code:

echo "$ERROR"

gets the return statement of:

Code:

echo "data"

and not from:

Code:

if [[ -s "$DD_INDD" ]]; then

Regards

ahh now I got it ...thnkx for such a clear explanantion