"'sudo: nano' command not found" issue.

Check that nano is in /usr/bin with: which nano

The problem isn;t that the command nano is not found, if that was the case the error message would be

sudo nano: command not found. For some reason the complete line

nano /private/etc/hosts

is being see as the command. That is the shell is trying to find a command called 'nano /private/etc/hosts'

This will show it better

bash-3.2$ sudo foo fog

sudo: foo: command not found

bash-3.2$ sudo 'nano /etc'

sudo: nano /etc: command not found

bash-3.2$

a

Nottice in the first line the command foo is not found and that way is reported. In the second command the error message is similar to what you get, the whole line is trying to be run. In this case because of the quotes around nano and /etc

As you have included a screenshot there is no way to see just what exactly is going on. Try running just

sudo nano

that most likely will work. You can also try something like

echo 'sudo nano /private/etc/hosts' | od -c

to see if anything strange is coming up between the last o in nano and the first /

I also suggest you cut and paste the command from the terminal rather then adding a screen capture.

Verify nano exists:

ls -l /usr/bin/nano

-rwxr-xr-x 1 root wheel 141088 Oct 31 22:53 /usr/bin/nano

Try:

sudo /usr/bin/nano /etc/hosts

You can see what your PATH looks like when running sudo using (copy and paste the following command into a Terminal session):

sudo sh -c 'echo $PATH'

nano is where it should be, and it should work as you described ( sudo nano /private/etc/hosts worked when I tried it)

See if you have nano set as an alias with: type nano (if it's not aliased you should see: nano is /usr/bin/nano)

But again the error isn;t telling you that the command nano can't be found, it is telling you a command called nano /private/etc/hosts can;t be found. Two very different things.

A few other things to try

run nano /private/etc/hosts directly from the prompt, no sudo. While you won;t have permissions on the file you're looking to see if the error message changes as a clue to want is up.

If it still fails with the SAME error message as you originally received then try running as a different user. This will help narrow the problem down to your environment or to the system.

Please paste the command you entered into a reply—the text, not a screenshot.

Ah great minds think alike!! See my post above where I wrote

I also suggest you cut and paste the command from the terminal rather then adding a screen capture.

Given the replies from Tony T1 and BobHarris after my post and now this one it is obvious that no no actually reads previous posts. Now I'm new here but are you guys getting paid by the word or do you all just figure no now else has anything worthwhile to say? 😕

There have been many times someone explaining something differently, or the way the explanation has been visually presented, has been the trick that has gotten through to the person asking the question.

...are you guys getting paid by the word...

As you well know, we are not getting paid anything.

Ideas from prior posters. Could this be some type of keyboard problem? Define a new user and run from the new user.

To further discriminate the problem:

sudo bash
# this put you in root. Type exit when done with root. Be careful with what you type
which nano
nano  /etc/hosts
/usr/bin/nano  /etc/hosts
echo $PATH
file="/etc/hosts"
app="nano "  # note trailing space
$app$file
echo -n $app$file | hexdump -C

output from hexdump

00000000 6e 61 6e 6f 20 2f 65 74 63 2f 68 6f 73 74 73 |nano /etc/hosts|

0000000f

This indicates that sudo is taking the complete line and trying to run it as a command.

A few things to try, enter

sudo echo hello

and see if you get an error message along the same lines as you have been getting ie.

echo hello: command not found.

Make sure you do not have and alias called sudo in your environment. From the prompt enter

alias

and see if anything starting with sudo is shown.

Cut and paste the exact command you are typing in when you run

sudo nano /private/etc/hosts

into a reply window here so we can see if there is anything strange there.

regards

rccharles wrote:

Ideas from prior posters. Could this be some type of keyboard problem? Define a new user and run from the new user.

A keyboard problem could have been a possibility but I would think given that the command works without running it as sudo a keyboard problem seems less likely. A weird keyboard should affect the command with or without sudo, no?

Your idea of running sudo bash is a good one. I'd only add that the first two commands the OP should run after entering

sudo bash

would be

id

env

regards

I agree that approaching the problem from different angels is a good idea. My only concern is that given the error message the OP is getting the problem is not that nano cannot be found it is that the shell is trying to run the complete line

nano /private/etc/hosts

as a single command. A subtle but important difference.

And of course I realize you folks aren't getting paid, was trying to lighten the mood. Looking back at what I wrote I realize I failed.

regards