Thanks to a message on identi.ca I ve saw this program usable from the command line that allows you to easily create custom desk calendars, marked with the dates that interest you and with the ability to add pictures to one (or more) special days. I’m talking of pcal shipped with anothe calendar programming lcal […]
Awk has always been for me a source of great hatred and love, isan incredibly powerful command with which it is possible to build real programs. In this article I will give you 6 examples ready for use with your preferred terminal. AWK is a data driven programming language designed for processing text-based data, either in files or data streams. It is an example of a programming language that extensively uses the string datatype, associative arrays (that is, arrays […]
I had recently problems with servers running application server Java and suddenly began to see strange errors like “broken pipe” or exausted resources, this is often due to the high number of open files that a modern server can bind especially compared to the default Linux systems that is still standing at 1024. Let’s see […]
I recently had to move from one machine to another about 50 GB of data, divided into hundreds of thousands of small files, and i had no additional space on the machine to make a zipped tar and then move it comfortably, I tried a scp, but after 45 minutes it had moved around 2 […]
You are root on your system, you do a rm of a file and get a “rm: can not remove` test ‘: Operation not permitted” is this possible? Yes, if there are any special extended attributes set on your filesystem. The “interesting” thing is that also some rootkit use these attribute after have changed some […]