shacomp() {
    if [ ! -z $1 ] ; then
        echo "Comparing $1 with sha1 hash $2"
        SHA=$(shasum $1 | awk '{ printf $1 }')
        if [ SHA = $2 ] ; then
            echo "$1 and $2 are same"
        else
            echo "$1 and $2 are not the same ($1 = $SHA)"
        fi
    else
        echo "usage: shcomp <file> <sha1>"
    fi
}