Feb 172011
 

tux-terminalAmong the commands available from the linux terminal there’s also cut, very useful for processing strings and characters in general.

The cut command is one of the oldest Unix command. That means that it is more then 40 years old. And it shows. It is important to understand that this is a Unix command and behaves in “Unix way”.  For example, it  uses IFS (Input Field Separators) to determine where to split fields.  You can check it with set | grep IFS. You can also set it, for example, to:

IFS=" tn"

The cut command takes a vertical slice of a file, printing only the specified columns or fields. The columns are selected using the standard IFS or one specified. Continue reading »

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Feb 142011
 

collabshotIn a previous article I talked about some programs to take screenshots in linux, and since then I must say that I have always used shutter.

But the open source world is beautiful because there are so many differents ways to do the same thing, so today I also unveils Collabshot and Jshot,  2 programs that waere created with the idea of sharing your work with someone else.

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Feb 122011
 

tux-terminalIf you want you can only use programs that run inside a terminal to make the most ordinary things you do every day.

Comfortable?

probably not, but on some occasions a program that runs from the terminal might help you … or for some of them they are simply better than even their graphics counterparts. Continue reading »

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Feb 102011
 

magic sysrqSometimes happen that your desktop freeze and you cannot do anything, so the only choice is to unplug the power cord ?
No, Linux has the magic SysRq key that can sync your disk and issue a reboot of your system…and many more things.

What is the magic SysRq key?

It is a ‘magical’ key combo you can hit which the kernel will respond to
regardless of whatever else it is doing, unless it is completely locked up.
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