Re: [PATCH iproute2-next] "ip help" wrong output, exit code.

[Stephen Hemminger <stephen@networkplumber.org>]

On Sun, 21 Jun 2026 22:48:59 +0100
Dmitri Seletski <drjoms@gmail.com> wrote:

> From 0805e07105cd15c5b94271a4706e50e3c65dbde5 Mon Sep 17 00:00:00 2001
> From: Dmitri Seletski <drjoms@gmail.com>
> Date: Sun, 21 Jun 2026 22:12:43 +0100
> Subject: [PATCH iproute2-next]  "ip help" wrong output, exit code.
> 
> Changed output of "ip help" from standard error to standard output. And 
> Exit is now 0 instead of -1. "ip help|grep bridge" - now gives bridge 
> syntax instead of flooding user with everything from "ip help".
> ---
> ip/ip.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/ip/ip.c b/ip/ip.c
> index e4b71bde..4627b61c 100644
> --- a/ip/ip.c
> +++ b/ip/ip.c
> @@ -56,7 +56,7 @@ static void usage(void) __attribute__((noreturn));
> 
> static void usage(void)
> {
> -fprintf(stderr,
> +fprintf(stdout,
> "Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }\n"
> "       ip [ -force ] -batch filename\n"
> "where  OBJECT := { address | addrlabel | fou | help | ila | ioam | l2tp 
> | link |\n"
> @@ -72,7 +72,7 @@ static void usage(void)
> "                    -o[neline] | -t[imestamp] | -ts[hort] | -b[atch] 
> [filename] |\n"
> "                    -rc[vbuf] [size] | -n[etns] name | -N[umeric] | 
> -a[ll] |\n"
> "                    -c[olor]}\n");
> -exit(-1);
> +exit(0);
> }

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