tag:blogger.com,1999:blog-80481715539719453012026-08-18T08:58:25.017-04:00I decided to try and put together a basic guide for beginners. Using this blog you can learn to use unix, linux, and OSX command line one command at a time. Each post is self contained solving one problem or performing one task that users can easily replicate. Use the command reference located on the right side of the page to quickly focus on the command of your choice.Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comBlogger50125tag:blogger.com,1999:blog-8048171553971945301.post-32586386728170833092010-05-20T08:46:00.002-04:002010-05-20T08:46:52.863-04:00

   Adobe hastens release of HTML5 developer tool | Deep Tech - CNET News: http://bit.ly/cIRi0n

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-76683393285323306032010-05-18T08:59:00.001-04:002010-05-18T08:59:32.665-04:00

Mozy online backup gets faster and goes local | Deep Tech - CNET News: http://bit.ly/aSfKCF

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-90198392310987730132010-05-11T14:07:00.000-04:002010-05-11T14:08:45.884-04:00

XML workflow spec finalized - "XProc: An XML Pipeline Language" - : http://bit.ly/9VheAX

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-56488880178093407002010-05-11T13:52:00.002-04:002010-05-11T14:09:26.058-04:00

Embed HTML5 Videos with Multi-Browser Support on Your Site - Streaming Video - Lifehacker: http://bit.ly/bZyC9k

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-29672990629823960782010-05-11T13:45:00.000-04:002010-05-11T13:46:10.480-04:00

Video on the Web - Dive Into HTML5 - Getting your video ready for HTML5: http://diveintohtml5.org/video.html

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-64994198575748903112010-03-30T09:02:00.001-04:002010-03-30T09:02:25.999-04:00

Amazon Adds Private Streaming to CloudFront - CIO.com - Business Technology Leadership: http://bit.ly/d5n3iL

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-19994664247950427122010-03-30T09:00:00.000-04:002010-03-30T09:01:27.125-04:00

Future Developers Benefit From New Apprentice Scheme: http://bit.ly/cVjF4t

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-16421834202790171982010-03-30T08:58:00.000-04:002010-03-30T09:00:34.229-04:00

Opinion: HTML 5: Less than it's cracked up to be: http://bit.ly/bnuoki

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-21609558394357943282009-11-16T16:40:00.005-05:002009-12-21T11:21:09.926-05:00

How to look at the size of a list of directories. From time to time you need to look at the sizes of different directories to see how much space they are taking up. Here's a quick easy way to do this. Combining the ls command with the du command.prompt$ ls -d */ | xargs -n 1 du -hsThis will give you output that looks like this:-bash-3.00$ ls -d */ | xargs -n 1 du -hs 353M temp 301M www 135M www2

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-74298803164496221402009-11-13T12:49:00.005-05:002009-11-13T15:58:28.403-05:00

I recently had a friend ask me to help them read a FoxPro (dbf, cdx, fpt) database. The only problem was neither of us had FoxpPro or anything that would open and read the file. All we wanted to do was read the data and output plain text. I searched the internet for a free tool to help with this task and I found zilch!!! I did find things that would let you read the first 50 records, but if you

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-78162396147897759282009-10-17T11:26:00.001-04:002009-10-17T11:28:51.500-04:00

This site has a lot of really cool features and the search capability is really cool.Checkout the site: http://www.redfin.com/home

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-31348520602812480062009-10-17T11:05:00.003-04:002009-10-17T11:10:43.352-04:00

Hi Folks,I found this very simple easy way to listen to all the music on my home Mac while I'm at work. It's called Simplify Media (http://www.simplifymedia.com/). It's free and easy to use. You can also invite up to 30 people to listen to your music and vice versa. I should mention that this is not a way to copy music, just listen. I enjoy listening to all the music on my home computer while I'm

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-13719036354535499802009-10-08T10:11:00.002-04:002009-10-08T10:16:38.606-04:00

Today I found that I need to find files of certain types within a directory structure. there are many kinds of files in my structure, but I only need to find the mp3, mp4, and file with the number 384 in the name. Here's how it did it:> find . -type f | egrep "mp3|mp4|384"This will find all files in the local dir structure and filter the output printing only the files that contain one of the

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-72701240444104500622009-08-25T09:21:00.002-04:002009-08-25T09:24:57.795-04:00

Getting the current system date:SQL> select sysdate from dual;How to find the day of the month:SQL> select extract(day from sysdate) from dual;You can also say extract month and year the same way. Give it a try.

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-20594062578434713892009-08-25T09:05:00.003-04:002009-08-25T09:10:47.297-04:00

I find that my Firefox just isn't that fast these days. These quick tips seemed to help a little. The first can be found here at forevergeek.com: Make Firefox fasterThe second is can be found here at lifehacker.com: Vaccum your Firefox databaseI'll post more as I find and test them.

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-7574192388454792582009-08-12T09:57:00.001-04:002009-08-12T09:58:35.630-04:00

I recently had a need to run some PC apps on my iMac. I know thee are many ways to do this, but I came accross this simple program called Crossover (http://www.codeweavers.com/products/cxmac/) that really makes it easy without the huge overhead of running a VM. I don't think this would be good for all programs, but it might just be what you need. It's fast and easy to setup. They also have a

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-35848675479494682252009-08-10T16:36:00.001-04:002009-08-10T16:37:51.340-04:00

Hi Folks,I just found this really cool tool for cleaning up Javascript code. I found it very easy to use and I was surprised by what it found.Check it out: http://www.jslint.com/

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-7003935850152838932009-06-08T13:55:00.004-04:002009-06-08T23:16:30.957-04:00

I found this cool page that has some good examples of using awk to parse apache log files: http://bit.ly/UdxKFYou can extrapolate these examples to any other kind of text file.Have a look, and have some fun!!! 

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-83849584735412756852009-06-04T09:57:00.002-04:002009-06-04T10:05:17.333-04:00

This is very similar to creating a tar file. The only difference is you change the file name and add a new command line option. In the last post we created a tar file of all the html files in a directory. Let's do this again only this time, we'll create a gzipped tar file./my/web/root> tar -cvzf mywebroot.tar.gz *.htmlNote the new option (z) and the new file extention (.tar.gz)The ability to

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-76506163116234334452009-06-03T10:14:00.003-04:002009-06-03T10:28:11.105-04:00

Creating tar files is essential for certain processes. It's an easy way to package up files and directories for moving on the file system or storing on tape. The simplest form of a tar file contains just files and lives as a file itself. Here is an example of that:Say you have a directory full of html files, a web site perhaps with no directories. This is uncommon but will show a very simple tar

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-17757724654323119312009-06-01T12:12:00.002-04:002009-06-01T12:15:35.323-04:00

I just found a great article on ghacks.net that explains how to do this. I though I'd just pass the url along, I shortened it using micURL: http://micurl.com/ynh0vzEnjoy!!!

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.comtag:blogger.com,1999:blog-8048171553971945301.post-71386520122334423502009-05-28T22:20:00.004-04:002009-05-28T22:41:06.098-04:00

This does happen from time to time. You need to create a many levels of directories on your system like this:/someroot/dir1/dir2/dir3/dir4You could use mkdir (make directory, see man mkdir) to create them one at a time, then cd into the one you created and create the next one. That would look like this:> mkdir someroot> cd somroot> mkdir dir1> cd dir1You get the picture. That's a lot of typing

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.com0tag:blogger.com,1999:blog-8048171553971945301.post-33469228390252604552009-05-27T14:14:00.011-04:002009-05-28T22:46:28.648-04:00

This easy but handy script will add a new column to your file. In this example the column will contain the text 'someserver-(n)' the (n) will be numbers starting from 1 to the number of lines in the file. See the output at the bottom. This is useful if you ever have to combine like files, log files are a good example. Put this text in a file called addcolumn.pl.#!/bin/perlmy $prefixtext = "

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.com0tag:blogger.com,1999:blog-8048171553971945301.post-28067079712062230552009-05-27T11:38:00.002-04:002009-05-27T11:47:11.789-04:00

This is actually a pretty handy thing to know. I use it to parse config files for shell scripts. The cool thing is it's very easy to do. Let's say you have a config file called my.conf that has two different kinds of lines. Lines that contain things you want and comments. It may look like this:# Users home directoryHDIR='/home/users/jsmith'# users current directoryCDIR=`pwd`There may be reasons

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.com0tag:blogger.com,1999:blog-8048171553971945301.post-80022564658758355692009-05-26T23:09:00.007-04:002009-05-29T11:06:40.660-04:00

I know this is a bit off topic, but I thought it would be good to cover anyway. Getting a virus on your computer is a bummer. And yes it's still possible to get a virus even if you have antivirus software installed. It's not enough to have it installed you have to make sure the antivirus database updates itself on a daily basis. Here are (in my opinion) the most important things you can do to

Eric Parkerhttp://www.blogger.com/profile/07412707779001126104noreply@blogger.com0