how to extract columns from a text file using the bash
Extracting columns from a text file is a very common task for system administrators or for scientific engineers, but, sometimes also other people needs to do this task. This is a preview of how to extract columns from a... Read more
Ten useful functionalities embedded into ios 6 device (iPhone, iPad, iPod)
The new operating system for the apple mobile devices added a lot of useful functions. There are hundreds of functions, and more….. Finding the right functionality for your needs could be very difficult, so I wrote a list of... Read more
Top 101 mistakes done by novice programmers C – part 5
View also related posts: 14 Difference between '' and "" This is a preview of Top 101 mistakes done by novice programmers C – part 5. Read the full post (761 words, estimated 3:03 mins reading time) Read more Top 101 mistakes done by novice programmers C – part 4
This article continues the one published two weeks ago: Top 101 mistakes done by novice programmers C, Top 101 mistakes done by novice programmers C – part 2 and Top 101 mistakes done by novice programmers C – part 3 13.... Read more Top 101 mistakes done by novice programmers C – part 3
This article continues the one published two weeks ago: Top 101 mistakes done by novice programmers C and Top 101 mistakes done by novice programmers C – part 2 8. Forgetting to put a break in a switch statement Remember that... Read more
The Ten Commandments for C Programmers (Annotated Edition)
These commandments were written by Henry Spencer in 1992 The Ten Commandments for C Programmers (Annotated Edition) Henry Spencer 1 Thou shalt run lint frequently and study its pronouncements with care, for verily its perception and judgement oft... Read more Top 101 mistakes done by novice programmers C – part 2
This article continues the one published two weeks ago: Top 101 mistakes done by novice programmers C 6. Macro expansion All the mistakes in the Macro expansion are very sneaky, because they don't return any warning also with newer compiler.... Read more
A flight simulator into Google Earth
Developers, usually, insert into their applications some hidden features. Often these features are useless, but sometimes they are complete applications. In this case Google added in Google Earth a complete flight simulator. To activate the simulator you have to... Read more Top 101 mistakes done by novice programmers C
Really, now there aren't 101 mistakes, but there will be all (with your help). This post want to be a vademecum for beginners to avoid most common mistakes. It could be also awesome, for example IMHO the most important... Read more
Exporting the Raspberry display on your PC using Xorg
The first time I powered up the Raspberry Pi I attached to it the USB Keyboard, the USB mouse and the 19 inch monitor that I normally use with my PC. These objects worked fine with the Raspberry, but... Read more
How to open a storyboard created with Xcode 4.3 or 4.4 with Xcode 4.2 (workaround)
Storyboard.storyboard could not be opened. Could not read the archive. Please use a newer version of Xcode. Consider changing the document's Development Target to preserve compatibility. I've received the above message when I tried to open the storyboard... Read more
43 Mountain Lion hidden pictures
43 Mountain Lion hidden pictures In the New Mac OS X there are 43 high resolution pictures hidden in a directory of the screensaver framework. It seems (as said by OSX Daily, who discovered the images) that they... Read more
How to boost compiling process, Parallel compiling
The most of us holds a multicore system, but often we don't use this characteristic, especially when we need to compile our programs. In linux, you can use the boost of the multicore simply defining an environment variable.... Read more
How to use emoticons on the iPhone, for free!
One of the strangest thing I noticed in the applestore is the presence of a large number of applications to enable the use of the emoticons on the iPhone/iPod/iPad. It's strange because the emoticon keyboard is present by default... Read more
12 useful Windows shortcuts you should know
In computing, a keyboard shortcut is a finite set of one or more keys that invoke a software or operating system operation when triggered by the user. A meaning of term "keyboard shortcut" can vary depending on software manufacturer.... Read more
How to extract email addresses and twitter user names from a text file
Sometimes you might have to extract email addresses or somthing similar from a big piece of text, a couple of week ago I had to do this job for my wife, I had to extract every web site addresses... Read more
How to select odd (or even ) raws from a text file using the bash
Yesterday I had to select some raws (1, 5, 9, ….) from a text file. This has been a hard job because I was trying to solve the wrong problem…… Really, before coding you should analyze deeply your problem... Read more 3 ways to remove duplicate lines from a text file
One of the more diffcult job, while using the shell, is working with text files to filter their content. In the following few lines you will find 3 different ways to remove all the duplicate lines from a... Read more
Ubuntu 9.10: error while loading shared libraries: libtinfo.so.5
Under Ubuntu 8.10, 9.04 and 9.10 the entrypoints for libinfo are part of ncurses. The libtinfo.so functionality is built into the libncurses.so shared library. So for software that uses the libtinfo.so object you need to install ncurses. I... Read moreAug
24
2010
