The basic 'who' command lets you see the time of last system boot; list of users logged-in; the current run level, etc.
At the command prompt, type 'man [command]' (removing the brackets and substituting the command for which you need information).
The TAR command is Create Tape ARchives and is used by Linux and Unix. Information and explanations can be found on the linfo and computerhope websites.
"gettimeofday" is a command used in Linux and Unix, thus not capitalized. If one wishes to find information on it, the person should look for a manual or a list of Linux/Unix commands with definitions.
Fdisk is a command that can be used in Linux to manage partitions. With this command one can view all disk partitions or delete partitions. For detailed information on step by step instruction for using this command one can access 'The Geek Stuff' website.
You get a command not found. Linux is case sensitive. So, for example: The command "systemctl" will not be the same as "SystemCTL" to a shell in Linux. One will work, the other will return an error saying there's no such command.
The grep command is used to search for text, or lines containing certain words or strings of words. Stackoverflow, techonthenet, linux are a few sites that tell more about this command
One can find information on a Linux mail server on the official Linux website page. The page offers frequently asked questions and general information about the Linux program and service.
There are many places where one can find information about Linux for the iPod. Some of these include the website Linux Journal and the blog Tech Republic.
By invoking a terminal emulator or switching to one of the virtual terminals.
Finding information regarding Linux dedicated servers is not a very challenging thing to do at all. In order to find information regarding Linux dedicated servers, one can visit the Colocation America website.
Most Linux servers do not have GUIs. If it had one installed,it could be started by issuing the startx command.
You can find more information about Linux data replication on the cisco support forums and on the couchbase website. Alternatively you can check the linux-mag and howtoforge website for more information.