Let's say I forgot how to call `ls`, then I'd run `apropos directory` with ` | grep -i list` appended afterwards. Full command would be: apropos directory

Let's say I forgot how to call `ls`, then I'd run `apropos directory` with ` | grep -i list` appended afterwards. Full command would be: apropos directory | grep -i list And now it's just 7 options, where `ls` is easy to find :)