On Tue, Jun 9, 2015, at 11:24, Karel Zak wrote:
> On Tue, Jun 09, 2015 at 10:37:46AM +0200, Martin Steigerwald wrote:
> > Set policy:
> > chrt [options] [-p] [<policy>] <priority> [<pid> | <command> [<arg>...]]
>
> Yes, I have modified --help output to this
Well, -p is just one of the possible options, so it could be simply
subsumed under [options]. Also, the brackets around "<pid> | <command>
[<arg>..." seem to say that both <pid> and <command> are optional,
but they are not when the <priority> is given. Furthermore, <policy>
seems to suggest it is something like "WORD" or "name" or "12345",
but in fact it is a certain type of option, starting with a dash.
So I think the current synopsis is rather confusing.
The man page summarizes the command as follows:
chrt [options] priority command [argument...]
chrt [options] -p [priority] pid
The first line shows how to run a command with certain attributes,
the second how to query or modify the attributes of an existing process.
Quite clear.
So, to make usage synopsis clearer and correct I would suggest
rewriting it as:
Set policy:
chrt [options] <priority> <command> [<arg>...]
chrt [options] -p <priority> <pid>
The first of the upcoming two patches makes this change.
Benno
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