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Tutorials, tips & tricks in Linux systems.

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Batch converting images in command line

Batch converting images in command line

Today I wanted to resize some pictures. I always use command line and "convert" to do it. Usually I type this: [crayon-5f6b1f1ea0137243006543/]   This...

How to setup SSH server on Ubuntu 16.04

How to setup SSH server on Ubuntu 16.04

First of all - what is SSH? Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network....

Synchronize data in Ubuntu using rsync

Last time I bought a desktop PC to my small office. I wanted to have a PC which will be always in my office, because getting notebook every time is not...

Caffeine doesn’t work on Ubuntu

I tried to use Caffeine - a simple app which prevents running screen saver and locking display. I installed it from the Software Center but it didn't work....

Not enough free disk space on boot

Sometimes when you want to update your Ubuntu you see this: Not enough free disk space Please free [...] disk space on /boot   It means that you have old...