exit out of a while loop with error

Shell Programming and Scripting
1

im running a while loop as a file watcher, with incremental counter on the retries..however when the retries reach it's limit i want it exit and echo and error and stop the batch. Im not sure the code i have will do that already...

Here is what i have that works:

#!/usr/bin/ksh
count=0
while [ $count -lt 3 ]
do
count=`expr $count + 1`
echo "Try $count"
RUNDATE=`date "+%h%e"`
filedate=`xyz.txt | awk '{print $6,$7}`
if [ "$Spotfiledate" != "$RUNDATE" ]
then
echo "File's date is $Spotfiledate and today's date is $RUNDATE. They don't match"
echo "I will sleep 30 seconds and try again; 3 tries is my limit"
sleep 30
else echo "Today's file $Spotfiledate is now in."
echo "Sleeping 30 secs to allow it to process."
sleep 30
break
fi

done

2

Exit with 0 if the try is Ok.

Just put a comment after the loop, meaning all retries have been done.

#!/usr/bin/ksh
count=0
while [ $count -lt 3 ]
do
   count=`expr $count + 1`
   echo "Try $count"
   RUNDATE=`date "+%h%e"`
   filedate=`xyz.txt | awk '{print $6,$7}`
   if [ "$Spotfiledate" != "$RUNDATE" ] 
   then 
       echo "File's date is $Spotfiledate and today's date is $RUNDATE. They don't match"
       echo "I will sleep 30 seconds and try again; 3 tries is my limit"
       sleep 30 
   else echo "Today's file $Spotfiledate is now in."
       echo "Sleeping 30 secs to allow it to process."
       sleep 30   # maybe this sleep is not necessary
       exit 0
    fi
done
echo "Error, maximum number of retries reach!!"
3

The loop will exit when it reaches the maximum. Print your error message after the loop and exit with an error.

Please put code inside

 tags.


#!/usr/bin/ksh
count=0
while [ $count -lt 3 ]
do
    count=`expr $count + 1`

[/quote]

[indent]
You don't need an external command to do intergerr arithmetic:

count=$(( $count + 1 ))

Are you trying to execute a text file? Or did you mean to pipe it into awk?

filedate=$(awk '{print $6,$7}' xyz.txt )

But you don't need awk for that:

read a b c d e f g h < xyz.txt
filedate=$f$g

Where have you defined Spotfiledate?