[edge17]

  -bash: imgcat: command not found

am I missing something?

[sankha93]

GP is talking about the inline images protocol: https://www.iterm2.com/documentation-images.html

[bdcravens]

You probably need to download and put it in your path.

https://www.iterm2.com/utilities/imgcat

[saagarjha]

  $ curl https://www.iterm2.com/utilities/imgcat > /something/on/your/path/imgcat