How to make output of any shell command unbuffered?

Question

Is there a way to run shell commands without output buffering?

For example, hexdump file | ./my_script will only pass input from hexdump to my_script in

Answer 1

The command unbuffer from the expect package disables the output buffering:
Ubuntu Manpage: unbuffer - unbuffer output

Example usage:

unbuffer hexdump file | ./my_script