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Tag: Unix

Purge Temporary Files

22 January, 2009 (19:15) | Linux, Shell

Many Linux / Unix programs create temporary files with names like “#file#” or “file~”. If a program crashes, you may be left with “core” files. These files serve a purpose, but quite often it is useful to remove them. I have been using the script below for a decade or more to keep my directories [...]

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Cheat Sheets

24 November, 2008 (20:38) | Linux, Shell

Scott Klarr has collected a huge number of cheat sheets for everything from programming to Photoshop. They are organized in groups, and some groups like the Linux / Unix group contain more than 70 cheat sheets. The groups include:

C, C++, C#
Gimp
Windows
Networking
Linux / Unix
Designer color charts
Vi & Vim
Emacs
Photoshop
Perl
Regular Expressions
MySQL
PHP
CSS
Javascript / Ajax
Html

The cheat sheets are available at [...]

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Grep and Awk to Extract Text

10 September, 2008 (22:06) | Shell

Once you start using the command line, it is amazing how many things you can do that were difficult in a GUI system. A common task is to extract data from text files. The text files may be the output of some program, or they may be written documents like saved emails. Here are some [...]

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Unix Command Line Calculator

15 August, 2008 (18:29) | Linux, Shell

I spend a lot of time on a Linux / Unix command line. Often I need to do a quick calculation. I don’t want to hunt around for a fancy calculator program. I want something that works right from the command line.
The bc program is a command line calculator for Linux / Unix. It is [...]

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I left my shell in the sun and now it is all GUI

5 August, 2008 (22:25) | Shell

It seems that everything is GUI these days. Everything has to have a graphical user interface. Sure, it looks great, but is it really user-friendly? Do you really get more done with a GUI than with a command-line interface? The saying goes that when you sell software you show the managers the graphical version, but [...]

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