Linux Training for the New Linux User - Linux Download Tips for Linux Virtual Machines

June 11, 2008 Linux Certifications | Comments (0) admin @ 5:56 am

You can quickly and easily download Linux free as a virtual machine and run Linux in Windows!

Here’s how you can run Linux in Windows - You download and install the free Linux virtual machine player and a free Linux virtual machine. Then you run the player and “open” the virtual machine, in the same way as you run a spreadsheet program and open a spreadsheet.

Linux Tips You Need to Know - Before You Download Linux Virtual Machines

1. Some Linux virtual machines are in a small Linux download file - but get bigger! Some Linux download (virtual machine) files are very small in relation to others, and so they take much less time to download. However, once you open them in the virtual machine player, you are just starting to install them! These virtual machines are set up to start a “network installation” immediately after you open them in the virtual machine player.

When you open these files, a “Linux network installation” begins and you have to provide several configuration settings and install the Linux OS “over the internet”. This can be a very time-consuming way to get Linux in Windows.

Linux Tips: If you are a new Linux user, download Linux virtual machines that have been completely installed, as opposed to ones that need to be installed “over the network”. It takes longer to download Linux virtual machines that are completely installed, but you will save a lot of time in the long run.

2. Some Linux virtual machines have no time limit, but others only run for a limited time.

For example, Ubuntu Linux and Fedora Linux are available for free and have no time limit. However, the Red Hat Linux and SUSE Linux virtual machines have a limit to the number of days of use, such as 30 days. And you have to “sign up” for these Linux distributions by filling in a bunch of forms online.

Linux Tips: Unless you have a burning need to learn a specific Linux distribution, get one that doesn’t have a time limit. Ubuntu Linux is a very stable Linux distro that works well and is a relatively small Linux download.

Written by Clyde Boom.

Easy Linux Training for New Linux Users - Linux Tips on How to Use Linux Command

May 29, 2008 Linux Certifications | Comments (0) admin @ 3:21 am

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

Written by Clyde Boom.

Easy Linux Training - Linux Tips on Using Multiple Options with a Linux Command

Linux distributions (versions), especially the major Linux distros, include several “point-and-click” Linux GUI utilities. These utilities can be used to do Linux administration task. However, you have to do an awful lot of pointing and clicking to get anything done in these Linux GUI utilities.

What takes several clicks (and way too much time) with a Linux GUI utility can be done almost instantly by running a Linux command. However, new Linux users usually find Linux commands tricky to learn - but they are well worth learning. Also, if you are working on some kind of Linux certification, you will get tested on Linux commands, not on Linux GUI utilities. Another benefit of learning Linux commands is that they are virtually identical on all 130 + Linux distributions. So, the best way to learn how to use Linux, to do Linux system administration, is to learn how to use Linux commands.

Linux tips: When you get Linux training, including Linux certification training, be sure to learn how to use Linux commands. Don’t waste time learning Linux GUI utilities.

Linux Tips - How to Use Multiple Options with a Linux Command

1. Most Linux commands have several options.

Linux command options are used to control the output of a Linux command - and some Linux commands have over 50 options!

2. For almost all Linux commands, the options are prefixed with a - (dash).

For example, the following Linux command runs the ls command with the l (el) option. The l stands for “long” and it gives you a longer (and more detailed) listing of files and directories in the Linux file system.

]# ls -l

Linux Tips: In these examples, the ]# represents the Linux command line prompt. You don’t type in the prompt!

3. Linux command options can be combined.

The ls command is used to list the directories and files in the Linux file system. It has an l (for long) option and an a (for all) option. The a option shows “all” files, including hidden files.

The following command uses the l and a options to give you a long listing of all files.

]# ls -l -a

4. Linux command options can be combined without a space between them and with a single - (dash).

The following command is a faster way to use the l and a options and gives the same output as the Linux command shown above.

]# ls -la

5. The letter used for a Linux command option may be different from one command to another.

For example the -r option of one command may not provide the same output as the -r option for another command.

Written by Clyde Boom.