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http://www.aspireoneuser.com/forum/viewtopic.php?f=31&t=1256&st=0&sk=t&sd=a&hilit=custom+desktop+script

n95 modem:http://wosten.blogspot.com/2008/08/usb-modemnokia-n95-with-acer-aspire-one.html

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Vi Reference

Wednesday, October 8th, 2008

As I don’t use vi very often I seem to forget many of the commands - I know what it can do but sometimes I forget how to do it!

http://www.cs.ucl.ac.uk/staff/t.pagtzis/unix/vi/vi-weq.html

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Apache / Site administration - some useful commands

Tuesday, September 30th, 2008

http://www.debian-administration.org/articles/207

This brief introduction for configuring sites and modules in Debian’s Apache 2 package explains how to add and remove sites using the supplied tools, along with adding and removing modules.

The main source of confusiong comes from the various directories stored beneath /etc/apache2:

sites-available: A list of configuration files - one per site. A blank install will contain the file default. The system admin can have as many sites here as they need - however - they will not all be active.
sites-enabled: A list of symlinks to configuration files in sites-available. A blank install will contain a symlink 000default to sites-available/default. The sites listed here are the sites which will be active. The site to be used if no virtual hosts match will be the first file found (hence the 000 on 000default).
mods-available: A list of configuration files - one or more per module. Each dpkg installed module will add files here. e.g. php4.conf and php4.load are added with the libapache2-mod-php package. Again - the system admin can install whatever modules they wish - however - until they are set available they will not be active.
mods-enabled: A list of symlinks to configuratioon files in modes-available. Only modules linked in here will be activated on the webserver.

Now - several discussions on #debian IRC channel on freenode recently have had people advising others to either copy files from the available to the enabled directories or to manually symlink them. The user has, however, a better option - the four commands a2ensite, a2dissite, a2enmod and a2dismod

a2ensite: Will create the correct symlinks in sites-enabled to allow the site configured in sitefilename to be served
a2dissite: Will remove the symlinks from sites-enabled so that the site configured in sitefilename will not be served
a2enmod: e.g. a2enmod php4 will create the correct symlinks in mods-enabled to allow the module to be used. In this example it will link both php4.conf and php4.load for the user
a2dismod: Will remove the symlinks from mods-enabled so that the module cannot be used

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Another approach to inline validation

Friday, August 29th, 2008

http://tetlaw.id.au/view/javascript/really-easy-field-validation

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Unix referance

Monday, August 25th, 2008

wildcard characters
*	The * wildcard character substitutes for one or more characters in a filename. For instance, to list all the files in your directory that end with .c, enter the command ls *.c
?	? (question mark) serves as wildcard character for any one character in a filename. For instance, if you have files named `prog1, prog2, prog3`, and `prog3` in your directory, the Unix command: ls prog?
dir
Change	cd dir Change to directory d
Make	mkdir dir Create new directory d
Move	mv dir1 dir2 Rename directory d1 as d2
Remove	rmdir dir Remove directory d
file
list , no details only names	ls filename , filename with wildcard character/s.
list , details	ls -1 filename , filename with wildcard character/s.
move to directory	mv filename dirname (wildcard character/s supported)
copy file to other/current directory	cp file directory/newfile or cp directory/oldfile .
Delete the file	rm file , rm -rf directory - Recursively remove files & directly without any warning.
file	file filename , file command tries to determine the file type , text , executable etc after comparing the values in /etc/magic .
File edit/create/view
vi - vi full screen editor	vi filename , Opens a existing file or creates
ed - Line Text editor	ed filename
count - Line, word, & char	wc filename
Text content display - List contents of file at once	cat filename
Text content display by screen : List contents of file screen by screen	more filename
Concatenate - file1 & file2 into file3	cat file1 file2 >file3
File operation
Change read/write/execute mode of fil	chmod mode file
chown	chown [-R] [-h] owner[:group] file
move (rename ) file	mv file1 file2 Rename file file1 as file2
Remove	rm file Delete (remove) file f
Compare two files	cmp file1 file2
Copy file file1 into file2	cp file1 file2
Sort Alphabetically	sort file
Sort Numerically	sort -n file
Split f into n-line pieces	split [-n] f
match pattern	*grep pattern* file** Outputs lines that
Lists file differences	diff file1 file2
head f Output beginning of file	head file
Output end of file	tail file
PROCESS
Suspend current process	CTRL/z *
Interrupt processes	CTRL/c *
Stop screen scrolling	CTRL/s *
Resume screen scrolling	CTRL/q *
Sleep for n seconds	sleep n
Print list of jobs	jobs
Kill job n	kill %
Remove process n	kill -9 n
status process status stats	ps
Resume background job n	bg [%n]
Resume foreground job n	fg [%n]
Exit from shell	exit
User admin
add a new user login to the system	# useradd -u 655 -g 20 -d /home/ttes testlogin loginname -u is userid , if not specified system takes highest available . -g group id should be existing in /etc/group , if not specified other or user is assigned. -d home directory , default is to use user as the directory name under the home directory. loginname - new login name to be created . #useradd testlogin will create a user by the name ‘testlogin’ with all default values .
password Change	passwd <user>
alias (csh/tcsh) - Create command	alias name1 name2
alias (ksh/bash) - Create alias command	alias name1=”name2″
alias - Remove alias	unalias name1[na2...]
printer
Output file f to line printer	lp -d printer file

System Status
Display disk quota	quota
Print date & time	date
List logged in users	who
Display current user	whoami
Output user information	finger [username]
Display recent commands	history
Environment Variable
set	set command alone displays the environment variables, it is used to set options in ksh like set -o vi
export	export variable , export makes variable visible in sub shells.
Set environment variable (csh/tcsh) to value v	sentenv name v
Set environment variable (ksh/bash) to value v	export name=v example : export TERM=vt100
Connectivity
Connecting to a remote host	$telnet hostname/ip address or $telnet Telnet brings up the login prompt of remote host and expects you to enter your user name & password .Without argument it enters command mode (telnet>) and accepts command listed by ? at telnet> prompt. Communication is not encrypted between two hosts.
Securely connecting to a remote host	ssh username@hostname or ssh -l username hostname Depending on ssh setting for your account you may or may not be asked a password to login. Your login/passwd will be same login password as you would use with telnet connection. Communication is encrypted between two hosts so if someone intercepts your communication he will not be able to use it.
Copy files from/to remote host	ftp hostname ftp expects you to enter your username/passwd or if it is ftp only account it will require ftp account password . put , mput (multipleput) command is used to transfer files to remote host. get , mget (multipleput) command is used to transfer files from remote host. ftp allows some limited number of commands to be executed at ftp> prompt & summary of ftp command can be found by using ? at ftp> prompt
Securely copy files from/to remote host	sftp username@hostname:remotefile localfile Communication is encrypted between two hosts.
Test the tcp/ip connectivity between two hosts	ping hostname If you can ping a host the host is reachable from the machine that you are using . Router/firewall configuration may prevent ping to succeed .
Backup and Restore
backup and restore using tar , TApeaRchive	tar tvf filename.tar — View the table of content of a tar archive tar xvf filename.tar — Extract content of a tar archive tar cvf filename.tar file1 file2 file3 — Create a tar archive called filename.tar using file1, file2,file3 . tar can’t copy the special files , device files .Not suitable for taking root backup.
backup and restore using cpio , CopyInputOutput	cpio is mostly used in conjunction with other commands to generate a list of files to be copied : #ls \| cpio -o > /dev/rmt/c0t0d0 — Copy the contents of a directory into a tape archive: #find . -depth -print \| cpio -pd newdir — copy entire directory to other place: #find . -cpio /dev/rmt/c0t0d0 — Copy files in current directory to a tape cpio can copy special files and hence useful in taking root backup containing device file.
Find files , directories
find files , directories	Find command is used to find the files , directories and to run commands on the list of files thus generated .By default, find does not follow symbolic links. *find . -name .log -print — Simple find to list log files find . -name ‘.log’ -exec rm {} \;* — Simple find to find log files and delete them . find accepts a long list of options to find the files based on different parameters such as create time , modified time , of certain size etc. Please refer to man find for more option.