how to output all possibilities in linux without tab?

Asked Mar 27 '21 at 16:38

Active Mar 27 '21 at 16:38

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I'm a linux beginner

I want to filter the possibilities in of a linux command , for example , how can i output the possibilities of 'service'?

I hope that was clear enough

thanks

asked Mar 27 '21 at 16:38

ARIK

2

Can you clarify what you mean with "output the possibilities of service"? – Quasímodo Mar 27 '21 at 17:01
You could use the MAN pages, example 'man service' – GarfieldBonn Mar 27 '21 at 17:47
You say "without tab", so are you referring to the list of possible completions generated by your shell (e.g., Bash) when you enter a command and press TAB twice? – amadeusamadeus Mar 27 '21 at 17:56
Does this answer your question? List all commands that a shell knows – Artem S. Tashkinov Mar 27 '21 at 18:21
@amadeusamadeus yes exactly what you said , I'm sorry if I was not clear enough. I could not find it with 'man service'. – ARIK Mar 27 '21 at 21:23
Most commands have a --help option that should give you an overview of their invocation. Now, service is a bit special, as the man page says: "The supported values of COMMAND depend on the invoked script". This is so because service invokes a script which may have many different options that service know nothing about. Whether the script itself has a help function depends on the script as well. – berndbausch Mar 28 '21 at 03:05
@ARIK So you are talking about the arguments the shell suggests for completion, while people commenting about man and --help think you would be talking about the options of a command. Can you relate to this question? – amadeusamadeus Mar 28 '21 at 12:09

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