What is the difference between "su" and "sudo" ?
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From: Matthew Lincoln on 30 Dec 2009 13:15 Sorry for this newbie question: at is the difference between "su" and "sudo" command ? Matthew
From: ray on 30 Dec 2009 13:20 On Wed, 30 Dec 2009 18:15:21 +0000, Matthew Lincoln wrote: > Sorry for this newbie question: > > at is the difference between "su" and "sudo" command ? > > Matthew 'su' allows you to log in as another user (not necessarily even superuser, if you specify a user name). sudo allows you to run a command as though you were logged in as superuser. man pages will give you much more info.
From: Stan Bischof on 30 Dec 2009 13:23 In comp.os.linux.misc Matthew Lincoln <kmlincoln100(a)hotmail.com> wrote: > Sorry for this newbie question: > > at is the difference between "su" and "sudo" command ? > Since you are a newbie, you're likely coming from Windows in which case "sudo" is roughly equiavlent to "runas" whereas "su" is cloase to "runas cmd". "sudo" executes a single command with elevated permissions, "su" opens a shell with elevated permissions. Stan
From: Bryce on 30 Dec 2009 13:25 Matthew Lincoln wrote: > Sorry for this newbie question: > > at is the difference between "su" and "sudo" command ? > > Matthew su allows you to become another user during the current session; i.e., until you enter exit to return to the earlier user identity. sudo allows you to execute one command as the named user and then returns to the original id. They're used mostly to temporarily become the root superuser. Try man su and man sudo for details. Welcome to linux! There's a big learning curve, but I think you'll find it worthwhile. Bryce
From: Randal L. Schwartz on 30 Dec 2009 13:43
>>>>> "Matthew" == Matthew Lincoln <kmlincoln100(a)hotmail.com> writes: Matthew> at is the difference between "su" and "sudo" command ? The simplest difference is that "su" uses the *new* users password, while "sudo" uses the *original* users password. This alone means that you don't have to have a shared secret password for root, for example. On some boxes I administer, root doesn't even *have* a possible password. I can't remember the last time I invoked su. I use sudo every day though. -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <merlyn(a)stonehenge.com> <URL:http://www.stonehenge.com/merlyn/> Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc. See http://methodsandmessages.vox.com/ for Smalltalk and Seaside discussion |