Linux/Unix
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Examples with awk: A short introduction Abstract : This article gives some insight in to the tricks that you can do with AWK.
UNIX Basics : Examples with awk: A short introduction
< em > pattern matching and processing < / em > < strong > awk 'pattern {action}' filename < / strong > reads one line at a time from file , checks for pattern match , performs action if pattern matched < em > pattern < / em >
Useful awk one-liners
test is a command-line utility found in Unix-like operating systems that evaluates conditional expressions . [ edit ] Syntax test expression or [ expression ] [ edit ] Description
test (Unix)
Norman Matloff's Unix and Linux Tutorial
Professor Norm Matloff Dept. of Computer Science University of California at Davis Davis, CA 95616 http://heather.cs.ucdavis.edu/matloff.html First, click here if you have no Unix background at all. This introduces the following topics: shell use; basic file and directory commands (ls, rm, cp, mv, pwd, cd); redirection (< and >) and pipes; "script" command; man pages.
More Unix commands
Home → Tools → Unix overview → Basic Unix commands → More Unix commands Synopsis command [-switches] [arguments] where:
Why do you need to learn the command line anyway? Well, let me tell you a story.
Learning the shell.
17. Hard Links and Symbolic Links Today we're going to test your virtual imagination ability! You're probably familiar with shortcuts in Microsoft Windows or aliases on the Mac.
Hard Links and Symbolic Links
Hard links and Soft links
As was mentioned in the section on file system structure , every file has a data structure (record) known as an i-node that stores information about the file, and the filename is simply used as a reference to that data structure. A is simply a way to refer to the contents of a file. There are two types of links: : a hard link is a pointer to the file's i-node.
Terminal - the Find command
Wednesday, 06 August 2008 16:47 For simple searches you need provide nothing more than a directory to start searching: find $HOME This is a bit basic :-) it finds everything in your Home directory. But we can be a bit more selective:This is a tutorial that teaches the UNIX ®/Linux ® chmod command. It presumes that you already know how to use the ls command to list the contents of a directory. The tutorial has been tested with Mozilla version 1.8 under Linux.
Tutorial for chmod
In the world of text editors, there's a plethora of options out there. If you've ever Googled "how to edit HTML sites" or some such, you know what we mean. Allow us, then, to introduce you to VIM, a free website editor that offers many of the same features as Adobe Dreamweaver, and runs on just about every desktop platform. Specifically, it comes by default on the vast majority of Linux distributions, OS X and commercial Unix systems. (It's available to install on Windows, too.)
VIM 101: a quick-and-dirty guide to our favorite free file editor
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