Problem with small script

[Robert Parker]

The script:
#/bin/bash
# testlink.sh
# must be run as root

file1="$1"
shift
mandir=/usr/local/share/man/man3/
cp "$file1" "$mandir"
cd "$mandir"
echo '$hash = '"$#"
while (( "$#" )); do
    file2="$1"
    ln "$file1" "$file2"
    shift
done

Results:
>> sudo ./testlink.sh readfile.3 readtextfile.3
$hash = 1
./testlink.sh: 11: ./testlink.sh: 1: not found
>>

Bash version: 4.3.11(1)-release (x86_64-pc-linux-gnu)

Any help appreciated,
Thanks.

-- 
The Bundys, Cliven, Ted and Al. Great guys to look up to.