find: paths must precede expression: shaun

userchecks () {
linecount=$(wc -l < Usernames)
echo $line

while [ $line -le $linecount ]
do
line=`expr $line + 1`
echo $line
username=$(head -$line Usernames)
existinguser=$(find /home -name $username)
if
[ -z $existinguser ]
then
sudo useradd -m $username

unset username
unset existinguser

else
userexists
fi
done
}

userexists () {
echo "PRESS 1 TO DELETE THE OLD $existinguser ACCOUNT, OR 2 TO KEEP IT, BUT RENAME IT WITH _OLD PREFIX:"
read input
echo $input

if [ $input -eq 1 ]
then
user=$(basename $existinguser)
sudo userdel $user
sudo rm -rf $existinguser
echo "USER ACCOUNT DELETED"
sudo useradd -m $user
unset username
unset existinguser
unset user
elif [ $input -eq 2 ]
then
suffix="_old"
user=$(basename $existinguser)
sudo userdel $user
sudo mv /home/$user /home/$user$suffix
echo "USER ACCOUNT NAME SUFFIXED WITH _OLD"
sudo useradd -m $user
unset username
unset existinguser
unset user
fi

userchecks

}

line=0
userchecks