How to use Vixie cron to schedule at regular odd times
The traditional way of specifying that cron should run a command everyten minutes is to write out a list of every minute that the command isto run on:
0,10,20,30,40,50 * * * * /some/command
Vixie cron introduced a shorthand notation for this: ' */10 '. We useit quite a lot, since it is very convenient; it is both shorter andmore explicit about what is really going on, which means
The (or a) problem with Unix manpages
Unix has three sorts of manpages: excellent ones that clearly answeryour questions, good ones that answer your questions if you read themcarefully, and bad ones that aren't worth reading because they don'tanswer your questions (at least in a way that you can understand).
The first sort are rare and obvious when encountered, which means thatwhen you read a manpage you are generally trying to guess whether youare dealing with the second sort or the third sort. The problem is thatthere are significantly
System status announcements and where your users are
Commentators on my earlier entry brought up usingTwitter for system status announcements and the like. I think that thismakes sense for a lot of places, but I don't think it makes sense forus, and it has to do with where our users are; not in a geographicalsense, but in a network and Internet sense.
For many Internet companies, your users are outside, on the generalInternet, trying to get 'in' to you, and so using a status reportingsystem that is outside
寂寞的孔子《孔夫子》(Confucius)
入場前廢話
想起張國榮時,我會先想起這電影
直到看了這齣電影,我覺得他也很有型,而且做得很好
之後他的電影多數都好看
今天在網上想找點張國榮的片段來重溫
我看了一些mv
看了他在王家衛電影的演出
但其實我覺得他最好看還是
想對3萬蚊港女說的話:
A sysadmin use for Twitter
We have some users that are interested in reading about technical systemstatus updates and what the sysadmins are doing in general. The obvioussolution is some sort of blog-like environment where sysadmins writethings periodically, but the problem with an actual blog is that ittakes too much time to write something, especially if we are in themiddle of a semi-crisis.
Hence the attraction of Twitter. The short length of Twitter messages(and their lack of formatting) means that we simply can't writevery much