Date: Mon, 11 Oct 2010 07:48:19 +0400 From: Anonymous <swell.k@gmail.com> To: Devin Teske <dteske@vicor.com> Cc: Brandon Gooch <jamesbrandongooch@gmail.com>, freebsd-hackers@freebsd.org, Garrett Cooper <gcooper@FreeBSD.org> Subject: Re: sysrc -- a sysctl(8)-like utility for managing /etc/rc.conf et. al. Message-ID: <86lj65ie4c.fsf@gmail.com> In-Reply-To: <238E0B24-AA12-4684-9651-84DA665BE893@vicor.com> (Devin Teske's message of "Sat, 9 Oct 2010 15:39:44 -0700") References: <1286397912.27308.40.camel@localhost.localdomain> <AANLkTikoohMo5ng-RM3tctTH__P6cqhQpm=FPhSE9mMg@mail.gmail.com> <51B4504F-5AA4-47C5-BF23-FA51DE5BC8C8@vicor.com> <AANLkTim=BLkd229vdEst8U0ugpq3UsHPxjZZp2qaJxH-@mail.gmail.com> <238E0B24-AA12-4684-9651-84DA665BE893@vicor.com>
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Devin Teske <dteske@vicor.com> writes: >>> ############################################################ GLOBALS >>> >>> # Global exit status variables >>> : ${SUCCESS:=0} >>> : ${FAILURE:=1} >> >> Should this really be set to something other than 0 or 1 by the >> end-user's environment? This would simplify a lot of return/exit >> calls... > > A scenario that I envision that almost never arises, but... > > Say someone wanted to call my script but wanted to mask it to always return with success (why? I dunno... it's conceivable though). > > Example: (this should be considered ugly -- because it is) > > FAILURE=0 && sysrc foo && reboot Wouldn't this bork functions used inside a conditional? : ${FAILURE:=1} foo() { return ${FAILURE-1}; } if ! foo; then echo good else echo error fi $ test.sh good $ FAILURE=0 test.sh error I think only sysrc_set() is affected, though. if sysrc_set "$NAME" "${1#*=}"; then echo " -> $( sysrc "$NAME" )" fi $ sysrc hostname=blah hostname: raphael.local sysrc: cannot create /etc/rc.conf: permission denied $ FAILURE=0 sh sysrc hostname=blah hostname: raphael.local sysrc: cannot create /etc/rc.conf: permission denied -> raphael.local
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