By Sandip Bhattacharya, Pancrazio De Mauro, Mark Mamone, Kapil Sharma, Deepak Thomas, Simon Whiting, Shishir Gundavaram
Purple Hat Linux nine is a strong, versatile open resource working process. Its acceptance is transforming into, either in domestic use and in company environments of all sizes. Its person interface makes it every piece as available as different working platforms, and its open resource pedigree opens the doorways to a awesome quantity of unfastened software program. This e-book courses you thru that tough time that comes simply after you could have put in a brand new working method, by way of providing you with the arrogance to open your wings and fly with it. we are going to take you thru the set up, we will get you operating, and by way of the top of the e-book you should have a well-configured, good, safe working approach and an international of chances.
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Additional info for Beginning Red Hat Linux 9
An environment variable consists of a name and a value, and is maintained by the shell for use by programs executed with it. The name of the search path environment variable is $PATH, and you can find out its value by executing the following command: $ echo $PATH /usr/local/bin:/usr/bin:/bin:home/sandipb/bin As you can see, the value of $PATH consists of a number of directories, separated by : characters. If you launch a program by typing only its file name (rather than its full path name) then the shell will try to find the program among the directories names in your path.
For example, the directory /bin contains the essential binary (or executable) programs available to all users, while the directory /sbin contains the binary programs essential to the super user (or root user − the user who has complete administrative control of the system). Note Of late, Red Hat and all major Linux distributions are trying to conform to the Filesystem Hierarchy Standard (FHS). This standard tries to bring a uniform file organization to the Linux world (which, until some years back, was plagued by different file organizations in the various distributions).
We'll return to these shortly, and see how to add our own shortcuts here. • The curious−looking square (with four equal divisions in it) is the workspace switcher, which we shall explain shortly. • Next we have the application task bars, which provide a convenient way of switching between whatever GUI applications are currently running in the workspace. The image above shows two applications running − the Mozilla web browser, and the Gaim instant messenger application. • At the right−most end of the panel we have the notification area, where various applications can indicate their status using icons: • The red round icon with an exclamation sign is the Red Hat Network Agent icon, which is indicating critical updates pending for your desktop.