On ubuntu, /bin/sh is always dash and it's not possible to change without changing the symlink:
https://wiki.ubuntu.com/DashAsBinSh
So, if you use chsh to make your shell fish, it would have no effect on os.system or the system function in C.
On ubuntu, /bin/sh is always dash and it's not possible to change without changing the symlink:
https://wiki.ubuntu.com/DashAsBinSh
So, if you use chsh to make your shell fish, it would have no effect on os.system or the system function in C.