I need to use this "bind" command described in articles like:
https://www.computerhope.com/unix/bash/bind.htm
https://www.gnu.org/software/bash/manual/html_node/Bash-Builtins.html#Bash-Builtins
But when I tried to run this command in my zsh terminal in my Linux Mint 20.3 Una(its base is Ubuntu 20.04 focal):
bind -P
I got "zsh: command not found: bind"
then I tried to install it: sudo apt-get install bind
I got: "Package bind is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source However the following packages replace it: bind9:i386 bind9"
but this bind9 is for DNS server, not what I want.
Why can I not install this? Where is this command???