From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus =?utf-8?Q?Klotzb=C3=BCcher?= Date: Wed, 07 May 2008 08:44:01 +0200 Subject: [U-Boot-Users] [PATCH] Propagate Error Status to the Shell on fw_printenv Errors In-Reply-To: <1210130175-1896-1-git-send-email-gerickson@nuovations.com> (Grant Erickson's message of "Tue\, 6 May 2008 20\:16\:15 -0700") References: <1210130175-1896-1-git-send-email-gerickson@nuovations.com> Message-ID: <87myn2ehqm.fsf@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Dear Grant, Grant Erickson writes: > Changed implementation such that fw_printenv returns failure status when one or more specified variables do not exist or when incorrect command syntax is used. > > This aids scripting fw_printenv such that the script can key of the return status rather than relying on standard error "scraping". Thank you, I think this is useful. > Tested On: > AMCC Kilauea > > Tests Run: > root at kilauea# fw_printenv > bootdelay=5 > baudrate=115200 > ... > root at kilauea# echo $? > 0 > > root at kilauea# fw_printenv -n hostname > kilauea > root at kilauea# echo $? > 0 > > root at kilauea# fw_printenv -n hostname ipaddr > ## Error: `-n' option requires exactly one argument > root at kilauea# echo $? > 1 But I don't understand what the purpose of the "-n" option is? Best regards Markus Klotzbuecher -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office at denx.de