Making iTerm to translate 'meta-key' in the same way as in other OSes

Question

In bash shell with emacs key-binding, you can use key combination like M-f, M-b to move one word forward or backward on the shell prompt respectively. Usually, the meta key

Answer 1

In Menu bar Iterm2 => Preferences => Profiles choose the keys tab and select

left Option key act as +Esc

worked for me as well in irssi.