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@VF58 wrote:

Last login: Sat Sep 17 09:05:21 on ttys000

administrator@Vals ~ % Is -aid /private/tmp

zsh: command not found: Is

administrator@Vals ~ % Is-ald/private/tmp

zsh: no such file or directory: Is-ald/private/tmp

administrator@Vals ~ % Is -ald /private/tmp

zsh: command not found: Is

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From the output above, I found that you actually typed

Is -ald /private/tmp 

You have mistyped the command.  An upper case "i" looks like a lower case "L" in this forum because of the choice of typeface for "regular" paragraphs:. I should have posted the command in a type whose typeface that makes the command clear.

The command is

ls -ald /private/tmp

That's a lower case "L", lower case 'S" for "ls", and the options -"-ald" are lower case "A', lower case "L", and lower case "D". Hint: copy and paste the command from the above if you want to make sure you get it right.