I do not fully understand why this is not working

All work apart from

./hello4.sh Ali

I have done

chmod +x hello4.sh

but this is not working and I'm not sure as to why

michael@raspberry: File Edit Tabs Help b michael@raspberry: File Edit Tabs Help GNU nano 5.4 hello3.sh \#! / bin/bash echo "Who is there?" read name echo "Hello Sname, have a nice day!" x Exit R Read File \ Replace U Paste J Justify Go To Line michael@raspberry: File Edit Tabs Help GNU nano 5.4 hello4.sh \#! bin/bash echo "Hello \$1, have a nice day!" [Read 3 lines ] ig Help 0 Write out W Where Is K Cut T Execute Location Exit Read File \ Replace U Paste J Justify ^_ Go To Line michael@raspberry: \$ ./hello4.sh bash: ./hello4.sh: bin/bash: bad interpreter: No such file or directory michael@raspberry: \$