Single Point of Failure

RAM Disk: A Very Interesting Idea…

Ξ June 29th, 2010 | → 0 Comments |
∇ Tools | ∇ file system, Linux, memory, ramdisk |

Simply run:

$ mkfs -q /dev/ram1 8192   # 8192 = 8MB disk capacity
$ mkdir -p /mnt/ramcache
$ mount /dev/ram1 /mnt/ramcache
$ df -H | grep ramcache

to mount your own mini ramdisk.

For more details, here and here are some references I found on the subject.

You might ask yourself “Why does this guy needs a ramdisk?… What a geek!”, and wouldn’t mind. It was kind of a epiphany, when I remembered to use a ramdisk to run a “‘Lack of space’ Test Case” on the application I’m building right now.
After running the application, I just had to copy a mp3 album to occupy the remaining disk space… et voilá, welcome the expected “error message”. No, not a SIGSEGV, a real error dialog!…

Redirecting your intents

Ξ June 27th, 2010 | → 0 Comments |
∇ Tools | ∇ redirection, shell, stdout |

command > filename

redirects the stdout from ‘command’ to a file called ‘filename’. The file shall be created if not present, or otherwise overwritten.

> filename
: > filename

are a special case of redirection, creating a zero-lenght file. The ‘:’ is a dummy placeholder that generates no content - usually used when the first form is not allowed by the shell.

command >> filename

also redirects the stdout to file, but the content is appended to file in the file already exists.

note: pre-pending 1, 2 or & will redirect stdout, stderr or both , according to the redirection ‘operator’ (>, >>).

A useful shortcut…

Ξ June 24th, 2010 | → 0 Comments |
∇ Humor | ∇ shortcut, Tip, Ubuntu |

Shift + Num Lock… whenever your numpad stops working on your ubuntu machine!

No more, no less… just perfect!

Ξ June 24th, 2010 | → 0 Comments |
∇ Abstract | ∇ Lines, Playground, Yellow |

No more, no less… just perfect!
Time to rest.

Home, Sick, Alone…

Ξ June 4th, 2010 | → 0 Comments |
∇ Music, Uncategorized | ∇ Company, Finding, Music |

I might be home alone, taking care of this cold and the running nose, but found this on the internet and had to share.