Linux For Beginners & Advanced Users

Tutorials, howtos, faqs, hacks, and tips about GNU/Linux operating systems for Linux users sorted by easy, intermediate and advanced level. ( rss feed ).

I am a new Linux user and student who used to write C or C++ programs on MS-Windows. Now, I am using Ubuntu Linux. How can I compile a C or C++ program on Linux operating systems using bash Terminal application?

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I am a new Linux bash shell command line user. How can I view a text file using command line on a Linux or Unix-like operating systems? How can I view (open) binary files such as PDF or images on a Linux or Unix like system from command line?

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Ubuntu Linux version 14.04 LTS has been released. How do I upgrade to a newer version of Ubuntu 14.04 LTS from Ubuntu 13.10 or 12.04 LTS?

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I am a new Unix system shell user. I need to find and list all hidden files including directories on a Linux or Unix-like system. How can I recursively list all hidden files and directories? How do I save result in a text file?

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I‘m a new Apple OS X Mabbook user. I am getting an error which read as follows when I connect to any remote Linux/Unix/BSD server or machine through OS X ssh Terminal app:

ssh user@server1.cyberciti.biz
Last login: Wed Mar 26 08:45:36 2014 from 1.2.3.4
-bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory

How do I fix this error?

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I am a new Unix shell programer. How can I extract the directory name from a full path (say /nas01/data/backups/file.tar.gz)? How do I get directory name from its path on a Linux or Unix-like system?

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I am a new Linux server user. I need to tunnel X over ssh. I type the following command from OS X Unix terminal to login into far_away_machine (a centos server):

ssh -X -o options -A -p 22 user@centos-far-away-server

But, I am getting the following error on screen:

X11 forwarding request failed on channel 0
Last login: Sun Mar 23 15:58:51 2014 from 1.2.3.4

How do I fix “X11 forwarding request failed on channel 0″ on Linux or Unix-like systems?

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