Selecting java alternatives

As root, run the following to see which alternatives are out there, and which one is selected as default:

update-alternatives --display java

As root, use the following to select default.

update-alternatives --config java

Research performed trying to get wireless card working on a laptop

"bcm4306 linux" search:
Dossy's Blog: Linksys WMP54GS with Broadcom chipset under Linux
How to Get One 802.11g Wireless Card to Work on Linux

"wmp54gs driver" search:
WinDrivers Computer Tech Support Forums - Linksys WMP54GS Wireless with Linux
HARDWARE wmp54gs - Gentoo Linux Wiki

"'no version of ndiswrapper found'"
Ndiswrapper Package Broken? [Archive] - Ubuntu Forums Conclusion: use 1.18 version of ndiswrapper in ubuntu.

"BCM43xx_IRQ_XMIT_ERROR" search
Problems with wlan bcm43xx - Ubuntu forums

Need to look into Linuxant:
Driverloader http://www.linuxant.com/driverloader/

1) Move wpa_supplicant binary to /usr/sbin/ and rename to "dldr_wpa_supplicant"
2) Move wpa_supplicant.conf to /etc/driverloader/ and rename to dldr_wpa_supplicant..conf, where interface is your interface name (mine was eth1)
3) Reboot

Tried adding pci=routeirq to boot parameters in /boot/grub/menu.lst

I never learned this in school.

Actually, I haven't had to format a Linux partition manually since (maybe) I experimented with Slackware in 1995. So, when I had a nice little 400 GB USB HD with three partitions (two NTFS, one Linux), I was somewhat at a loss as to how to proceed.

I found this handy guide to partitioning and formatting mkfs.ext3.

Ahhh... I have access now.

Quick ascii table in hex.

The Linux Quick Hacks page inspired on this one:

perl -e 'foreach $x (32..126) { printf(":: %c %x ::", $x, $x) } print "\n"'

Output:
:: 20 :::: ! 21 :::: " 22 :::: # 23 :::: $ 24 :::: % 25 :::: & 26 :::: ' 27 ::
:: ( 28 :::: ) 29 :::: * 2a :::: + 2b :::: , 2c :::: - 2d :::: . 2e :::: / 2f ::
:: 0 30 :::: 1 31 :::: 2 32 :::: 3 33 :::: 4 34 :::: 5 35 :::: 6 36 :::: 7 37 ::
:: 8 38 :::: 9 39 :::: : 3a :::: ; 3b :::: < 3c :::: = 3d :::: > 3e :::: ? 3f ::
:: @ 40 :::: A 41 :::: B 42 :::: C 43 :::: D 44 :::: E 45 :::: F 46 :::: G 47 ::
:: H 48 :::: I 49 :::: J 4a :::: K 4b :::: L 4c :::: M 4d :::: N 4e :::: O 4f ::
:: P 50 :::: Q 51 :::: R 52 :::: S 53 :::: T 54 :::: U 55 :::: V 56 :::: W 57 ::
:: X 58 :::: Y 59 :::: Z 5a :::: [ 5b :::: \ 5c :::: ] 5d :::: ^ 5e :::: _ 5f ::
:: ` 60 :::: a 61 :::: b 62 :::: c 63 :::: d 64 :::: e 65 :::: f 66 :::: g 67 ::
:: h 68 :::: i 69 :::: j 6a :::: k 6b :::: l 6c :::: m 6d :::: n 6e :::: o 6f ::
:: p 70 :::: q 71 :::: r 72 :::: s 73 :::: t 74 :::: u 75 :::: v 76 :::: w 77 ::
:: x 78 :::: y 79 :::: z 7a :::: { 7b :::: | 7c :::: } 7d :::: ~ 7e ::

sed guides.

I'm using sed (along with awk and shell scripts) to extract data from my website files.

Frequently Asked Questions about sed, the stream editor

sed one-liners

Colorized list_urls.sed

sed/sh/awk removing a section in multiple files

All of my scripts are in ~/bin, I'm replacing a marked section with my google adsense code, contained in a separate file.

remove_topstart.sh:
#!/bin/sh
find . -name '*.html' | while read x
do
   cat $x | awk -f ~/bin/remove_topstart.awk >> $x.$$
   cp $x.$ $x
   rm $x.$
done


remove_topstart.awk:
BEGIN { outsideTop = 1 }
/<!--TOPSTART-->/ { outsideTop = 0 }
/<!--TOPEND-->/ { outsideTop = 1 }
outsideTop {
   if( $0 !~ "<!--TOPEND-->" )
   {
      print $0
   }
}

insert_adsense.sh:
#!/bin/sh
#my.adsense.txt contains as its first line and as
#its last line.


#insert after tag, regardless of case.
#change index.html in current directory
cat index.html | sed '/<[Bb][Oo][Dd][Yy]>/r /home/thomas/my.adsense.txt' > index.html.$$
cp index.html.$ index.html
rm index.html.$

#change all *.html files in selected subdirectories
find . -name '*.html' | egrep "SubDir1|SubDir2|SubDir3|SubDir4|SubDir5" | while read x
do
   cat $x | sed '/<[Bb][Oo][Dd][Yy]>/r /home/thomas/my.adsense.txt' > $x.$$
   cp $x.$$ $x
   rm $x.$$
done

IE 4 Linux

Internet Explorer on Linux
http://webexpose.org/2007/01/07/internet-explorer-7-on-linux/

http://www.tatanka.com.br/ies4linux/page/Installation
IEs 4 Linux needs two packages: cabextract and Wine. You can install them using your Linux package manager (synaptic, apt-get, yum, emerge etc) or go to their sites.

wget http://www.tatanka.com.br/ies4linux/downloads/ies4linux-latest.tar.gz
tar zxvf ies4linux-latest.tar.gz
cd ies4linux-*
./ies4linux

Research on adding a wireless card using WPA in Ubuntu

I've just begun to research WPA + PCI wireless card in Ubuntu.

Follow installation instructions for ndiswrapper:
http://ndiswrapper.sourceforge.net/mediawiki/index.php/Installation

Using a ZyXEL card:
http://ndiswrapper.sourceforge.net/mediawiki/index.php/List#Z

Tools to use:

• iwconfig - to configure wireless network interface.
• iwlist wlan0 scan - scan for access points using wlan0 interface

WPA with ndiswrapper:
http://ndiswrapper.sourceforge.net/mediawiki/index.php/WPA