Could someone please advise on a good way to implement error checking in a script?
i am taking input from a file, iserting it's values into two commands and sending the output of each to seperate log files. i need to check those log files for for an occurance of 'error', stop the command if 'error' exists,. if it does not, then continue to next command. i have this so far....using mkdir for testing purposes.
...exerpt
for COMPONENT in `cat $1|awk '{print $1, $2}'`
do
printf "\n \n Creating components for $COMPONENT \n"
mkdir $COMPONENT >> ~/scripts/$COMPONENTERROR 2>&1
if grep error $COMPONENTERROR ! 1 || { echo "check error log"; exit 1; } fi

printf "Creating Island $2 \n"
mkdir $2 >> ~/scripts/$ISLANDERROR 2>&1
#if [stop_this -eq 1] then exit "STOP" else
#fi
done
....
or should i take another approach?