Tips on how to do keyword research for search engine optimization to help ensure your site ranks well in search engines like Google.

Linux GUI utilities provide an easy “point-and-click” method of doing Linux administration tasks, but they are time-consuming and awkward to use. You can run a simple Linux command to do the equivalent task in a fraction of the time it would take to use a Linux GUI utility.

When you get Linux training, be sure that it is focused on how to use Linux commands. Also, if you are interested in getting Linux certification, you need to know how to use Linux commands to be able to pass, not Linux GUI utilities.

Linux Tips – How to Use Linux “Patterns” (Linux Wildcard characters)

Some Linux documentation uses the term “pattern” to refer to Linux wildcard characters.

Wildcard characters are used in a “pattern” to cause a Linux command to work on multiple items, such as multiple directories and files in the Linux file system.

The two Linux wildcard characters are the * (asterisk) and ? (question mark).

Using an * (asterisk) with a Linux Command

An * (asterisk) is used in a pattern to represent “all” characters of an item (directory or file).

The Linux command below shows an example of the using the cp (copy) command to copy all (because of the * without any other letters or numbers) files in the current directory into the directory named memos.

]# cp * memos

Linux Tips: Keep in mind that Linux commands are “case sensitive”. Always type the letters in upper or lower case, as shown.

Linux Tips: Also, be sure to use spaces where they are shown. For example, in the Linux command above, you need a space (just a single space) between cp and the * and you need a single space between the * and memos.

The * (Linux wildcard character) can be combined with one or more letters at the front of it or after it.

The following Linux command is an example of the using the cp (copy) command to copy all files in the current directory beginning with the letter r into the directory named memos.

]# cp r* reports

The Linux command below copies all files ending in “sxw” into the directory named weekly.

]# cp *.sxw weekly

The next Linux command copies all files containing “mem” (anywhere in the file name) into the directory named monthly.

]# cp *mem* monthly

Using a ? (question mark) with a Linux Command

The ? (question mark) is used in a pattern to represent a single character.

The Linux command below shows an example of the using the mv (move) command to move files that have a single character and end in “cfg” into the directory named june.

]# mv ?.cfg june

The following Linux command moves all files beginning with “month”, and having two characters after “month”, and ending in “sxw”, into the folder named years.

]# mv month??.sxw years

To learn how to use Linux commands the easy way, you can watch Linux video tutorials. When you work with Linux videos, you can actually see Linux commands being run and hear a detailed description of why you need to run a certain Linux command.

Another benefit is that you can also see the output of the Linux command and hear a description of what the output means.

After seeing how to use Linux commands, you can run them yourself – to get practical Linux training.

You can improve performance of your Windows 2000/XP and reclaim memory by simply disabling the services that is also known as “System Services” you don’t need which Windows 2000 or XP automatically provide by default.

What Are System Services in the 1st place
System services are actually small helper programs that provide support for other larger programs in Windows 2000. Many of the services are set up to run automatically each time you start Windows 2000. However, if you’re not using the larger programs that these services are designed to support, these services are simply wasting RAM that could be put to better use by your applications. While the word “Disable” is used here to describe the idea that you’ll remove these services from memory, what you’ll really be doing is changing the startup setting from Automatic to Manual. When you do, the services won’t automatically start each time you launch Windows 2000 Professional. However, Windows 2000 will be able to manually start the services if they’re needed. That way you won’t be unnecessarily wasting RAM, but you won’t be crippling your system either. Note: If you’re running Windows 2000 Professional on a corporate network, you may not be able to adjust system services. Regardless of whether you can or not, you should check with your system administrator before attempting the make these changes.

Changing the startup type of a service from Automatic to Manual is a relatively simple operation. To begin, open the Control Panel, open the Administrative Tools folder, and then double click the Services tool. When you see the Services window, set the View to Detail if it isn’t already. Then click the Startup Type column header to sort the services by Startup Type. When you do, all the Services that start automatically will appear at the top of the list.

As you scan through the list of services on your system whose Startup Type setting is set to Automatic, look for the services in listed in the Table below. These are some of the services are good candidates to be set to a Manual Startup Type.

Examples of services that can be safely changed to Manual :-

DHCP Client — You’re not connecting to a specific DHCP server on your local network

Distributed Link Tracking Client — You’re not connected to a Windows 2000 domain

DNS Client — You’re not connecting to a specific DNS server on your local network

FTP Publishing Service — You don’t need your system to act as an FTP server

IIS Admin Service — You don’t need your system to act as an WWW server

IPSEC Policy Agent — You’re not connected to a Windows 2000 domain

Messenger — You’re not connected to a Windows 2000 domain

Remote Registry Service — You don’t remotely access the Registry of other systems on your local network

RIP Service — You don’t need your system to act as a router

Run As Service — You don’t use any applications that run as an alias

World Wide Web Publishing Service
You don’t need your system to act as an WWW server
If you find a match and think that your system doesn’t need that particular service, right-click on the service and choose the Properties command from the shortcut menu. When you see the Properties dialog box for that service, click the Startup Type drop down list and select Manual. Then click OK. As you change the Startup Type for any service, take note of the service’s name. That way you’ll have a record of which services you changed and can change them back if you need to, as I’ll explain in a moment.

Using the Windows Task Manager
Trick : To determine the amount of RAM you’ll regain by disabling unnecessary system services, use the Windows Task Manager. Here’s how: Before you disable any system services, reboot your system and don’t launch any applications. If you have applications that automatically load when you start Windows, hold down the [Shift] key to bypass the Startup folder. Then, right click on the task bar and select Task Manager from the shortcut menu. When you see the Windows Task Manager dialog box, select the Performance tab. Now take note of the Available value in the Physical Memory panel. After you disable those system services you deem unnecessary, reboot your system in the same manner and compare the Available value in the Physical Memory panel to the one that you noted earlier.

Final thoughts
Keep in mind that you may not find all the services listed in the Table set to Automatic on your system. In fact, you might not even see some of the services listed present on your system. If that’s the case, don’t worry about it. Each Windows 2000/XP installation is unique depending on the system and installed software, and different sets of services may be installed and set to start automatically.

On the other hand, you may find services other than those listed in Table set to Automatic that you may think are unnecessary. If so, you can find out what each service does by hovering your mouse pointer over the service’s description. When you do, a tool tip window will pop up and display the entire description of the service. You can then better determine if the service is unnecessary. Remember, by changing the Startup Type to Manual, Windows 2000 can still start the service if it’s needed. If you decide to experiment with changing the Startup Types of certain services, you can monitor the services over time by launching the Services utility and checking the list of running services. If you consistently find one of the services you set to Manual running, you may decide to change the Startup Type back to Automatic.