I was restoring some files from backup today and ran into a few files that had leading slashes. Whenever I see those kind of things I rename the files since they are a pain to work with in the shell. If you find yourself at a shell and need to work with files that have a leading dash just use the relative path and include the dashed filename in quotes.
I posted about Tom Limoncelli and his Time Management for System Administrators. I have written a simple wrapper to do pre and post processing of a todo file as it is opened and closed to somewhat mirror “the cycle”. If your interested you can find a bit more information on todo-cycle here.
It’s not new news but I havent seen anyone else mention it. Ben Rockwood over at cuddletech had his second SA Pro podcast with Tom Limoncelli, it covers time management. It’s a good listen, I’m still waiting for him to setup a feed for the podcasts. Tom has some good advice, I have picked up a few things and read his Time Management for System Administrators since listening to the podcast.
Im sure everyone is familiar with smb messages especially as everyone was assulted with them about 10 years ago (stupid soho routers and spammers unite!). Anyway, there are clients for linux like Linpopup. Well recently I didn’t want to use one of those to be able to send messages to my linux workstations so I cobbled together a simple network popup app with python.
I just wanted to make sure no one forgets that wildcards can be used in your .ssh/config. This can be extremely helpful. For example say you have 100 nodes that have a simple nameing scheme of nodexxxx. You can add the following into your ssh config and pre-poplulate settings. Host node* User staffuser IdentityFile ~/.ssh/staff_key That would cause any ssh connection matching node* to use the user staffuser and .
With small websites sometimes you need to put up a maintenance page while you are making some modifications. Typically you should have some staging enviornment but sometimes infrastructure does not allow for this. If you find your self in this situation you might like this tip.
I use vim for the vast majority of my editing. It can be a bit cumbersom to hit esc each time you want to perform a command while in insert mode. Using ctrl o will put you in command mode for the next command. Give it a try sometime it may or may not make you more effective with vim.
I have a pretty good memory when it comes to juggling multiple tasks but I am (and have been for some time) trying to break my self of using my brain to store everything. One area a worklog benefits is when you want to look back over time and see what your were working on several months ago (this can be helpful for reviews). At any rate there are many tools to do similar things. At any rate I wrote a simple tool to try and help with this. Feel free to take it modify it or comment on the horrible code.
Some projects have production code that runs off of a git cloned repository. There may be a case in which you want to notify others when that clone pulls. It is a pretty easy feat with gits post-merge hook. The post-merge hook will run after a merge (think git pull). All you have to do it create a project/.git/hooks/post-merge shell script and chmod +x it. Next time you pull successfully that script will run.
I see Samuel Huckins just had a post about apachetop http://dancingpenguinsoflight.com/2008/12/top-for-apache-activity/ which I have been meaning to mention for a while, but being that there is a fresh post about it I will mention Mytop instead. Mytop is top for mysql. It can be used for monitoring the threads and overall performance of a MySQL. Its an easy install in debain with a quick aptitude install mytop. Here is some example output (sorry my mysql server isnt very busy atm).