NASA Roger Beep
The “Roger” beep after transmissions from Space missions is @ 2475 Hz for 250 ms. According to everything2, there should be a pre-transmission tone @ 2525 Hz for 250 ms. They are called Quindar tones.
Monthly Archives: August 2008
Windows License keys
At My Digital Life you can read about Belarc Advisor spreading Windows license keys. Advisor is a system profiler which also includes the Windows key in its reports. Users posting them to the Internet also publish their Windows key. A common string of Advisor reports is “Belarc Advisor Current Profile“. Together with the desired Windows… Read More: Windows License keys »
Partition Numbering
After removal of the first primary partition, you might notice, that the names of the remaining partitions didn’t change. /dev/sda2 stays /dev/sda2. To renumber the partition, use fdisk and create a new primary partition no. 1 which is located behind sda2. You might want to delete your swap partition, create a new one in partition… Read More: Partition Numbering »
Colourful boot messages
The functions used for the status messages upon boot are defined in /lib/lsb/init-functions and may be overwritten in /etc/lsb-base-logging.sh. To add colours, in that init-functions file find the function log_use_fancy_output() and below the fi add the lines After that, edit the lsb-base-logging.sh and change e.g. the output of log_end_msg(): Your next boot will look like… Read More: Colourful boot messages »
Prompt with 2 directories
bash To only show the last 2 directories in prompt, there are two scripts at the Muffin Research Labs.The best one would be this: Add this to .bash_profile and replace \w by $(PWD) (note the parents!) in your PS1 line in that file. A more comfort version which replaces the home directory by a tilde,… Read More: Prompt with 2 directories »
Optimizing Linux
At Ubuntu Unleashed you can find a document about different settings to optimize startup times of the system and applications itself. The noatime and nodiratime settings are unneccessary in Hardy as the default option relatime only updates the access time if the file has been modified after the last access timestamp. You can enable the… Read More: Optimizing Linux »
bash Tips & Tricks
Bourne Again Shell. bash magic Some handy bash magic. sudo last command If you forgot sudo after executing your 3-lines-command, sudo bang! bang! will repeat the last entered command with sudo prefixed. More parameter magic bang Expands to !$ last argument of previous command !$:p just show last argument of previous command, don’t add to… Read More: bash Tips & Tricks »