Imagine that in your office’s computer, there are lots of interesting files that you have saved. As long as you are in your office, you have access to all of them, but when you go home, you can’t access it. The reason is that although your office computer has internet, it’s behind NAT and therefore you cannot access it directly. This is where a VPN can really be helpful.
If you’re mostly a Windows user or programmer and are porting to linux, you may be thinking that a command that would help you determine the free disk space of your computer would be pretty useful. Luckily, there exists such a tool and is called DF (Display Free disk space).
The linux shell is probably the most important thing that provides raw power to the end user. Getting to know more about it is crucial if we seek to be able to do simple and more complicated tasks with its help. The bash shell, which is what 99% of linux users use, contains a certain environment that a user works under.
The world of Unix is a place where everything is done the right way, till there is an even “righter” way to do it. For everything that gets coded, there is always something left to be edited. Almost every project in the Linux (or other unix related OS) community is based on patches. There are even quite a lot of patches for the linux kernel itself.
Teaching an old dog new tricks is definately not an easy task. People are used to doing the same things over and over and since learning can be a quite tedious activity, they most times don’t take the time and effort to elaborate a bit in order to harvest some goods out of that process. Don’t take that personally because i am probably the one that does that more than a lot.
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