macOS "/bin/bash" missing?

i seem to be missing my /bin/bash file...yet my system is working completely fine (except i cant run an external shell script because it says the inerpreter is bad).

how did this happen?

is it possible for someone to send me a bash file from their system (Panther 10.3.5) to replace it, or am i just going crazy...

help!

ok...well i see the bash file in the terminal now (not in the finder though), so you can ignore this post.