http://www.baconandtech.com Because everything's better with bacon Tue, 09 Dec 2008 17:37:06 +0000 http://backend.userland.com/rss092 en (This is on solaris, no -N option to diff for me!) This produces the easiest-to-read diff IMO: diff -btu [oldfile] [newfile] > patchfile -b = ignore blanks -t = preserve source indentation -u = 3 lines of context with the + and - in front of changed lines But the -t option interferes with proper patch ... http://www.baconandtech.com/2008/12/09/patch/ Data from the PostgreSQL Job Task Analysis survey. I shortened some questions and answers to better fit on the page; see original data if you are concerned about potential shifts in meaning. In many cases, I re-ordered the answers in a way that makes sense to me. Again, please ... http://www.baconandtech.com/2008/12/03/data-from-the-postgresql-jta/ I'm learning a little Python for a side project. I wrote a SELECT statement that would produce NULLs and rather than use COALESCE to prevent returning NULLs, I wanted the application to be able to detect and then replace the value with a default. In Perl, this is a no-brainer to ... http://www.baconandtech.com/2008/11/29/null-in-python-and-perl/ Here are the slides from my PDX.pm talk this week. A link to the accompanying podcast will be along soon. Other fun things we discussed at the meeting: Cisco::Reconfig trapgen logger logwatch Thanks for the lively discussion! [edit] podcast! [edit] Clarification of two items from the podcast: - multiline messages do indeed come in multiple packets. There ... http://www.baconandtech.com/2008/11/14/cisco-syslog-parser-slides/ You need: root/sudo access to a statically-addressed Ubuntu machine.  (It will need to be on whenever your router is on in order to get anything good out of this.) Enable access to your Cisco router. Part 1: Set up your log host. Step 1: before editing any of the files discussed below, be sure ... http://www.baconandtech.com/2008/11/10/quick-guide-ubuntu-box-as-syslog-server/ I just wrote way too much about the talks I'll attend to at PostgreSQL Conference West. Check it out! Let me know what you're planning to see in the comments! -selena http://www.baconandtech.com/2008/10/01/what-to-expect-when-youre-expecting-to-go-to-postgresql-conference-west-2008/ Last night, an incredible number of people showed up to Code-N-Splode to hear about Git. I was not at all prepared for that number of people, but grateful that a couple experts were on hand to help - Sarah Sharp, Audrey Eschright and Michael Schwern (and others) all contributed to ... http://www.baconandtech.com/2008/09/24/git-is-my-hero/ :bd - closes the current buffer window CTRL-F - page down; CTRL-B - page up; CTRL-D - put current line in the center of your screen CTRL-R - Redo (plus COUNT for redoing a number of changes); 'u' is for undo; 'U' is for undoing all changes on a particular line :set undolevels=NUM ... http://www.baconandtech.com/2008/09/22/vim-tidbits-of-the-day-92208/ Gabrielle and I are at it again, talking about Filesystem I/O and Linux at the Linux Plumbers Conference.  Mark Wong is the evil performance genius working with us behind the scenes, and a copy of what we brought to the conference today is here. Takeaway: Set your read ahead buffer size ... http://www.baconandtech.com/2008/09/19/linux-plumbers-conference-filesystem-io-under-a-database-workload/ I'm learning the PostgreSQL system catalog tables right now, and was wishing that I had some catalog flashcards.  I made my wish 'aloud' on IRC today, and @davidfetter managed to blow my mind with this simple command-line switch for psql: -E. Now, every time I use a command, the tool ... http://www.baconandtech.com/2008/09/15/command-line-trick-to-help-your-memory/