How to avoid command being saved to shell history

How to avoid command being saved to shell history

Answer:

Firstly, you need to set the Bash shell environment variable to tell the shell to ignore the history if the command is starting with a particular character, e.g. a space in our case below.

# export HISTIGNORE="&:[ ]*"

Then, type the command start with a space

# who

And verify using the history command

# history