Date: Sun, 12 Nov 2000 17:30:30 -0800 From: Kent Stewart <kstewart@urx.com> To: Tommy Forrest - KE4PYM <tforrest@mcs.net> Cc: "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG> Subject: Re: What is "["? Message-ID: <3A0F4436.9F691215@urx.com> References: <200011130004.SAA06022@mailbox.mcs.net>
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Tommy Forrest - KE4PYM wrote: > > Rooting around (no pun intended) my 4.0 system today I happened upon > a file called "[" in /bin. Not knowing what this file was I deleted > it. > > Rule number one: Dont delete that in which you do not know. Rename > it. My rule number one is much less forgiving. If you don't know what it is, don't touch it at all. > > Lesson learned. Soon after my network died. I rebooted the system. > Lots of bad things (tm) happened. Nothing would start up. So I > logged in and did a man [ and found it was a test utility. Then I > did a locate test |more Found /bin/test. Copied test to [ and > rebooted. Everything is happy. > > What, exactly, is "[". Why is it on my system as "["? ruby# ll test -r-xr-xr-x 2 root wheel 51112 Nov 10 16:51 test ruby# ll [ -r-xr-xr-x 2 root wheel 51112 Nov 10 16:51 [ You have been sent a reference to "man [" so that you can see how it is used. What I haven't seen is someone showing you that it is the same file with two names. Kent -- Kent Stewart Richland, WA mailto:kbstew99@hotmail.com http://kstewart.urx.com/kstewart/index.html FreeBSD News http://daily.daemonnews.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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