Ubuntu zsh: command not found: nano

You might get zsh: command not found: nano, if you the nano package is missing on your Ubuntu. So to fix this issue you need to install nano using package manager like apt, example - apt install nano,

% apt install nano

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Suggested packages:
  hunspell
The following NEW packages will be installed:
  nano
0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
Need to get 261 kB of archives.
After this operation, 868 kB of additional disk space will be used.
Get:1 http://ports.ubuntu.com/ubuntu-ports focal/main arm64 nano arm64 4.8-1ubuntu1 [261 kB]
Fetched 261 kB in 1s (263 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package nano.
(Reading database ... 8707 files and directories currently installed.)
Preparing to unpack .../nano_4.8-1ubuntu1_arm64.deb ...
Unpacking nano (4.8-1ubuntu1) ...
Setting up nano (4.8-1ubuntu1) ...
update-alternatives: using /bin/nano to provide /usr/bin/editor (editor) in auto mode

Now lets try using nano command,

% nano abc.txt