What would you estimate is the ratio of typos versus "thought it was installed"? Personally mine is probably 1,000 to 1. If I type a command and bash says comm

What would you estimate is the ratio of typos versus "thought it was installed"? Personally mine is probably 1,000 to 1. If I type a command and bash says command not found I know the program is not installed. If I need that program I am a big boy and can use apt without anyone holding my hand.