Novice Linux / Unix System Administrator Tutorials

These tutorials assumes that you have basic understanding of Unix like operating systems and you are familiar with – Unix/Linux and its commands at the user level, know how to edit files, familiar with the Bourne shell/Bash/Ksh shell, know how to perform standard file processing tasks (such as find/move/copy/delete/) and so on. ( rss feed )

I recently switched from OS X to Ubuntu. When I run the ‘vim file.c’ command at terminal, I see an error message that read as follows:

The program ‘vim’ can be found in the following packages:
* vim
* vim-gnome

* vim-tiny
* vim-athena
* vim-gtk
* vim-nox
Try: apt-get install <selected package>


How do I fix this problem and why vim is not a default text editor on Ubuntu Linux? How can I install full-fledged vim text editor in Ubuntu Linux?

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I am a new Unix / Linux user. I am using whatis command to find man pages. But, I noticed that some man pages have a common names. For example, when I run whatis printf:

Outputs:

printf (1) - format and print data
printf (1p) - write formatted output
printf (3) - formatted output conversion
printf (3p) - print formatted output
printf [builtins] (1) - bash built-in commands, see bash(1)

How do I access overlapping man pages and what is the meaning of (1), (1p), (3), and so on?

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I am a new Linux user. I use scp to upload files to net-storage provided CDN company. I do not want to overwrite the existing files. How can I prevent overwriting of files when using scp command under Linux, Mac OS X or Unix like operating systems?

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How do I install wake on lan client under Ubuntu Linux desktop to wakeup Unix or Linux based servers?

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I need to clean up my backups stored on the nas server. I need to free up the disk space. How do I find out all hidden dot directories such as /nas01/backups/home/user/.gnome/, /nas01/backups/home/user/.gnome/ and so on and delete then in a single pass using Linux or Unix command line option? Please note that I do not want to delete nested hidden directories such as /nas01/backups/home/user/data/.xml, /nas01/backups/home/user/foo/bar/.level/.levle2/ and so on.

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I would like to see the Time-to-live (TTL) value for a ‘AAAA’ and A record for domains. How do I see Time-to-live (TTL) for a DNS record under Unix or Linux operating systems using command line options?

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I am a new vi / vim text editor user and I know how to quit without saving changes. What if I want to wipe out all of the edits I have made in a session and get back to the original file? How do I wipe all changes since opening a file?

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