It's A Frog's Life Acoustic PodcastLast summer I wrote about some of the Acoustic, Irish and Celtic podcasts I was listening to. Back then I had just started listening to Graham Holland’s It’s A Frog’s Life Acoustic Podcast, but then again, Graham had just started doing the podcast, so I guess that’s to be expected.

The show has gone from great to outstanding. Show 15, a MySpace special was just outstanding. Graham continues to hand-pick fantastic music and put out a great podcast. He was even nice enough to give me a shout-out in show 16.

Check out the podcast site or just subscribe via iTunes. The best things in life are free.


music, folk, acoustic, british

By default, Linux and UNIX permissions for new directories are typically set to 755 allowing read, write, and execute permissions to user and only read and execute to group and other users. Conversely, file permissions default to 644 allowing read and write access to user but only read to group and others. These defaults are controlled by the user file-creation mask or umask.

A user or administrator may want to change the Linux default permissions by using the umask command in a login script. The umask command can be used without specifying any arguments to determine what the current default permissions are. The value displayed by umask must be subtracted from the defaults of 777 for directories and 666 for files to determine the current defaults. A typical umask which will generate the permissions listed in the previous paragraph would be 0022. The first digit pertains to the sticky bit which will be explained further later.

The –S option can be used to see the current default permissions displayed in the alpha symbolic format. Default permissions can be changed by specifying the mode argument to umask within the user’s shell profile (.bash_profile for the bash) script.

The following are some examples.

Using umask to Set Default Permissions

$ umask
0022

$ umask -S
u=rwx,g=rx,o=rx

$ umask 033

$ umask
0033

$ umask -S
u=rwx,g=r,o=r

The default umask will cause users to create files which any user can read. In many instances where you have a multi-user system this is not desirable and a more appropriate umask may be 077. That umask will enforce the default permissions to be read, write and execute for the owner and no permissions for the group and other users.

Easy Linux CommandsFor more tips like this check out my book Easy Linux Commands, only $19.95 from Rampant TechPress.

Buy it now!


unix, linux, umask, shell, bash, sysadmin, system administration

Cold enough at the Mount Washington Observatory that boiling water tossed in the air turns to snow instantly!

How cold? -34.8F Yeah, that’s cold.

The video was done earlier today by the Mount Washington Observatory Staff. The observatory is like a fallout shelter on the top of the mountain with some weather gear strapped on top. The staff has been known to do some wacky videos before, but it’ll be a lot more fun now that they’re posting them online.

Check out Water to Snow Round 1 which was done at a mere 22 below but with the aid of a 75MPH wind! It’s probably worth mentioning that Mount Washington is the location of the strongest wind gust ever recorded at a hasty 231MPH.

snow, mount washington, mt washington, new hampshire, nh, weather

Andy C has posted a list of Oracle blogs he reads listed by Technorati ranking. Not only did Life After Coffee make the list, but it made #1!

Andy C posted a short history of Oracle blogging about a year ago. It seems there were a lot fewer back then.

Check out the whole list. There are some great folks on here, many of whom actually post primarily about Oracle!

oracle, database, dba, rdbms, blog

After a long battle trying to get Javascript to work in WordPress posts I finally stumbled upon the Script Enabler Plugin by Otto. In hopes of shortening the search for others and since Otto doesn’t seem to have a home page for Script Enabler (or at least not one I can find) here’s everything you need to know about it.

Features:

  • No settings
  • No configuration
  • Use standard script tag syntax
  • It works

Instructions:

  1. Download it (click here)
  2. Unzip it (Hey, I was talking about the file)
  3. Move it to your plugins directory
  4. Enable it

Thanks to Otto for developing the plugin!

information technology, blog, blogging, blogs, java, javascript, wordpress

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