UNIX for Beginners Questions & Answers

#! /bin/sh

errExit ()
{
    errMsg=`cat $1.log >> "$1".err`
    cat "$1".err | tee /dev/fd/3    
   return
}

test()
{
logfile=$1
exec 3>&1 1>>"${logfile}".log 2>&1
echo "$1"
echo "$2"
echo " "
echo "#################################################"
echo "Hi Hello,This is first function"
echo "#################################################"
if [[ -z "$2" ]];
then 
errExit $logfile
return
else
#<some Commands Here>
fi
}

test_1()
{
logfile=$1
exec 3>&1 1>>"${logfile}".log 2>&1
echo "$1"
echo "$2"
echo " "
echo "#################################################"
echo "Hi Hello,This is second function"
echo "#################################################"
if [[ -z "$2" ]];
then 
errExit $logfile
return
else
#<some Commands Here>
fi
}