How to filter only printable characters in a file on Bash (linux) or Python?

Question

I want to make a file including non-printable characters to just only include printable characters. I think this problem is related to ACSCII control action, but I could not

Answer 1

You can try this sed command to remove all non-printable characters from a file:

sed -i.bak 's/[^[:print:]]//g' file