uptime shows how long the Linux kernel has been running. This give the user who invokes the command an idea of how long the computer has been running. If uptime shows a time shorter than expected, the user knows that the computer has been rebooted recently. I use it often when I SSH into a remote computer on which I've been running updates. If I want to know whether or not the computer has been restarted, I run uptime. That way I know whether or not to look for processes which need to be manually restarted.
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In addition, uptime shows how many users are connected to the system as well as the average system loads for the past few time intervals. This is useful if you want to know how much computing power is being allocated to the total number of users connected.
Show uptime
99.99% uptime for a linux based hosting is possible,but as you need this option backup serbers will have to be inforced making this option quite expensive.
Linux is extremely stable, it has been found to run for years on servers without a singe crash. Linux Uptime is measured in MONTHS not days.
k is not a standard command in Linux.
There is no such command. Obviously, in order to enter a command into the prompt, Linux must already be on.
In a Linux terminal, the command to create a new directory is: mkdir .
In Linux the chmod command is used to set file permissions.
Nothing. Helo is not a recognized command in linux.
Linux does not have a limit as to the number of characters you can enter in a command.
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.
To stop heartbeat in Linux the command line will be service Heartbeat stop To start heartbeat in Linux the command line will be service Heartbeat start
The whoami command.