Shell: Check if symbolic link

This function checks if given path has symbolic link within it.

checkSymbolicLink()
{
    if [ ! -d $1 ]; then
        return 1
    fi
    pushd $1 1>/dev/null
    cdir=$(pwd)
    while [ $cdir != '/' ]
    do
        if [ -h $cdir ]
        then
            return 0
        fi
        cd .. 1>/dev/null
        cdir=$(pwd)
    done
    popd 1>/dev/null
    return 1
}

To get real path, whether the path is real of symbolic, use realpath command.