On Dec 17, 2012, at 11:55 AM, "Mike Hoskins (michoski)" <[email protected]> wrote:
> -----Original Message----- > > From: Feng He <[email protected]> > Date: Monday, December 17, 2012 3:31 AM > To: "[email protected]" <[email protected]> > Subject: Re: [dns-operations] note for the peanut gallery Re: underline in > TXT's host > >> 于 2012-12-15 2:37, Fred Morris 写道: >>> So therefore let me state that I suggest that the unwary reader SHOULD >>> NOT >>> paste this into a shell to find out. I'll spoil the fun and tell you >>> that >>> it would delete everything in whatever directory you were in, and all of >>> the directories below it. >> >> He is kind enough to not saying `rm -rf /` :) > > It's been a long time since I was bored enough to try something like this > for fun, but from what I remember on an old Solaris box "/" might be > kinder -- if often fails quickly due to permissions, /dev being processed > early, etc. > > If nothing else, this thread was a great advertisement for backups. My favorite is noticing that emacs, mutt, whatever is not working right. So I do 'ls -al' and notice that .emacs.d, .mutt, whatever is owned by root… Now, "obviously", chown'ing each directory is too hard / annoying, so I run: sudo chown -R $USER .* Yup, .* helpfully expands to '.' and '..' before '.emacs.d', and so chown walks up and then back down the fielsystem, chowning *everything* to $USER…. It usually[0] runs for 5 - 10 seconds before I wonder why it's all taking so long and realize the issue…. This biggest problem with this is that I always think that I can recover from this by copying permissions from another machine by doing 'ls -alR /', and then massaging the output with sed and awk and passing that back to chown…. This never results in a reasonable end state… W [0]: Yes, I have in fact done this more than once :-P [1]: "Whenever faced with a problem, some people say `Lets use AWK.' Now, they have two problems." -- D. Tilbrook > > :-) > > _______________________________________________ > dns-operations mailing list > [email protected] > https://lists.dns-oarc.net/mailman/listinfo/dns-operations > dns-jobs mailing list > https://lists.dns-oarc.net/mailman/listinfo/dns-jobs > -- "Real children don't go hoppity-skip unless they are on drugs." -- Susan, the ultimate sensible governess (Terry Pratchett, Hogfather) _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
