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From: Philippe Gerum <rpm@xenomai.org>
To: liyinjie <liyinjie@sinsegye.com.cn>
Cc: xenomai@lists.linux.dev
Subject: Re: [PATCH] commands/evl: improve argument of help
Date: Sat, 07 Oct 2023 16:03:50 +0200	[thread overview]
Message-ID: <87ttr2edbk.fsf@xenomai.org> (raw)
In-Reply-To: <20231007112300.1352970-1-liyinjie@sinsegye.com.cn>


liyinjie <liyinjie@sinsegye.com.cn> writes:

> Hi all.
>
> Enter the command `evl --help`, output
>
> usage: evl [options] [<command> [<args>]]
> -P --prefix=<path>   set command path prefix
> -v -V --version      print library and required ABI versions
> -h --help            this help
> evl: no 'help' command. Try 'evl --help'.
>
> This patch will fix incorrect output "evl: no 'help' command. Try 'evl --help'.".
>

This output means a problem with the installation, it looks like the
evl-help sub-command file is not there on your system. On a typical
installation with evl rooted at /usr, the following file should be
present:

root@blade-qemu-x86_64:~# ls -l /usr/libexec/evl/evl-help 
-r-xr-x--- 1 root root 394 Mar  9  2018 /usr/libexec/evl/evl-help

With this file present, the output would be:

root@blade-qemu-x86_64:~# evl --help
usage: evl [options] [<command> [<args>]]
-P --prefix=<path>   set command path prefix
-v -V --version      print library and required ABI versions
-h --help            this help

available commands:

check        check kernel configuration
gdb          debug EVL command plugin with GDB
ps           report a snapshot of the current EVL threads
start        start the EVL core
stop         stop the EVL core
test         run the EVL tests
trace        ftrace control front-end for EVL

-- 
Philippe.

  reply	other threads:[~2023-10-07 14:30 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-07 11:23 [PATCH] commands/evl: improve argument of help liyinjie
2023-10-07 14:03 ` Philippe Gerum [this message]
  -- strict thread matches above, loose matches on Subject: below --
2023-10-07 11:19 liyinjie

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