Welcome to Linux Knowledge Base and Tutorial
"The place where you learn linux"
Let The Music Play: Join EFF Today

 Create an AccountHome | Submit News | Your Account  

Tutorial Menu
Linux Tutorial Home
Table of Contents

· Introduction to Operating Systems
· Linux Basics
· Working with the System
· Shells and Utilities
· Editing Files
· Basic Administration
· The Operating System
· The X Windowing System
· The Computer Itself
· Networking
· System Monitoring
· Solving Problems
· Security
· Installing and Upgrading
· Linux and Windows

Glossary
MoreInfo
Man Pages
Linux Topics
Test Your Knowledge

Site Menu
Site Map
FAQ
Copyright Info
Terms of Use
Privacy Info
Disclaimer
WorkBoard
Thanks
Donations
Advertising
Masthead / Impressum
Your Account

Communication
Feedback
Forums
Private Messages
Recommend Us
Surveys

Features
HOWTOs
News
News Archive
Submit News
Topics
User Articles
Web Links

Google
Google


The Web
linux-tutorial.info

Who's Online
There are currently, 186 guest(s) and 3 member(s) that are online.

You are an Anonymous user. You can register for free by clicking here

  

Linux Tutorial Topics: 

Note that any given object can relate to more than one topic, so it is likely that pages will appear more than once. For example, concepts may relate to topics that are slightly different from the topic of the page where they are discussed in detail.

Programming

Pages

Editing Files -> Sed -> Sed
Editing Files -> Awk -> Awk
Editing Files -> Perl -> Perl

Concepts

Unwanted cron output can be redirected just like any other command.
There are six primary file types - regular, directory, block device, character device, named pipe and symbolic link.
The current directory is typically not part of the root user's search patch.
Use the 'chmod' command to make shell scripts executable.
A common reason commands are not found is that they are not in your path
Multiple pipes can be used to combine multiple commands.
You can use the find command to search for specific files on your system.
Error messages can be sent to a file using the construct "2> file_name"
Three files are opened by the shell when your start it- standard input, standard output and standard error.
Positional parameters can be assigned to variables to make them easier to identify.
The position parameter $0 refers to the script that is being executed.
In a script, multiple if-statements could be combined into a case-statement.
The file command can be used to determine the type of file.
You can assign the output of a command to a variable using backticks like this VAR=`command`.
Linux only looks in your search path to find commands and programms.
To change into a directory you actually need "execute" permissions on the directory.
When a shell variable is defined, it is NOT automatically available to subsequent processes.
Another term for wildcards is metacharacters.
Curly braces {} can be used to combine variables.
When using position parameters in a script, they need to be proceeded with a $, just like any other variable.
The number of position parameters (i.e arguments) is stored in the special variable $#.
The special variable $0 contains the name of the script being executed.
Symbolic links can refer to files or directories on different filesystems.
The 'umask' command sets the default permissions for newly created files.
Applications react to "terminal capabilities" as apposed to specific keys.
The regular expression [:alnum:] matches alpha-numeric characters in all supported languages.
The root user can configure cron to run jobs as a particular user by placing them in /etc/crontab.
On busy systems cronjobs might end up being skipped if they are run every minute.
Each entry in the /etc/printcap file consists of single logical line.
When accessing the hard disk, processes are "put to sleep" to wait their turn.
System process that run in the brackground are typically referred to as daemon processes.

Back to Topics Page

  
Help us cut cost by not downloading the whole site!
Use of automated download sofware ("harvesters") such as wget, httrack, etc. causes the site to quickly exceed its bandwidth limitation and therefore is expressedly prohibited. For more details on this, take a look here

Login
Nickname

Password

Security Code
Security Code
Type Security Code


Don't have an account yet? You can create one. As a registered user you have some advantages like theme manager, comments configuration and post comments with your name.

Help if you can!


Amazon Wish List

Did You Know?
The Linux Tutorial welcomes your suggestions and ideas.


Friends



Tell a Friend About Us

Bookmark and Share



Web site powered by PHP-Nuke

Is this information useful? At the very least you can help by spreading the word to your favorite newsgroups, mailing lists and forums.
All logos and trademarks in this site are property of their respective owner. The comments are property of their posters. Articles are the property of their respective owners. Unless otherwise stated in the body of the article, article content (C) 1994-2013 by James Mohr. All rights reserved. The stylized page/paper, as well as the terms "The Linux Tutorial", "The Linux Server Tutorial", "The Linux Knowledge Base and Tutorial" and "The place where you learn Linux" are service marks of James Mohr. All rights reserved.
The Linux Knowledge Base and Tutorial may contain links to sites on the Internet, which are owned and operated by third parties. The Linux Tutorial is not responsible for the content of any such third-party site. By viewing/utilizing this web site, you have agreed to our disclaimer, terms of use and privacy policy. Use of automated download software ("harvesters") such as wget, httrack, etc. causes the site to quickly exceed its bandwidth limitation and are therefore expressly prohibited. For more details on this, take a look here

PHP-Nuke Copyright © 2004 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.
Page Generation: 0.07 Seconds