What two commands below will halt a Linux system immediately?

shutdown Command: shutdown command used to halt, power-off or reboot the machine. halt Command: halt command used to halt, power-off or reboot the machine. poweroff Command: poweroff command used to halt, power-off or reboot the machine. reboot Command: reboot command used to halt, power-off or reboot the machine.

What command can you use to safely shut down the Linux system immediately?

To shut down the system from a terminal session, sign in or “su” to the “root” account. Then type “/sbin/shutdown -r now”. It may take several moments for all processes to be terminated, and then Linux will shut down. The computer will reboot itself.

What directory under contains the log files and spools for a Linux system?

CIT222 Chapter 4- Linux Filesystem Management Key Terms

Question Answer
/usr The directory that contains most system commands and utilities.
/var The directory that contains log files and spools.
chgrp (change group) command The command used to change the group owner of a file or directory

Thus, the usual recommended range is something like 10-30 GB, with the caveat that it can go even higher than that for some users — but for the majority of “normal” users, even 20 GB is probably adequate if you have a separate /home partition.

What command is used to display the lineage of a process by tracing its PPIDs until the init daemon?

Linux ch 9

What option can be used with the ps command to display an entire list of processes across all terminals and including daemons? -e
What command below is used to display the lineage of a process by tracing its PPIDs until the init daemon?​ pstree

What command shuts down after 1 second?

To create a shutdown timer manually, open Command Prompt and type the command shutdown -s -t XXXX. The “XXXX” should be the time in seconds you want to elapse before the computer shuts down. For instance, if you want the computer to shut down in 2 hours, the command should look like shutdown -s -t 7200.

What is halt command in Linux?

This command in Linux is used to instruct the hardware to stop all the CPU functions. Basically, it reboots or stops the system. If the system is in runlevel 0 or 6 or using the command with –force option, it results in rebooting of the system otherwise it results in shutdown. Syntax: halt [OPTION]…

What piece of software tells the operating system?

The kernel is a computer program at the core of a computer’s operating system and has complete control over everything in the system. It is the “portion of the operating system code that is always resident in memory”, and facilitates interactions between hardware and software components.

What Metacharacter indicates Background command?

Calculate the Price

​Which two filesystems below perform journaling? ext4; REISER
Some Linux distributions have the ability to boot an image from install media and run entirely from RAM. What is the name for this kind of image?​ live media image
What metacharacter indicates background command execution? &

What is the difference between root and home directory in Linux?

The root directory contains all other directories, subdirectories, and files on the system.

Difference between Root and Home Directory.

Root Directory Home Directory
In the Linux file system, everything comes under the root directory. The home directory contains a particular user’s data.

How do I know the size of my house?

Multiply the length by the width and write the total square footage of each room in the corresponding space on the home sketch. Example: If a bedroom is 12 feet by 20 feet, the total square footage is 240 square feet (12 x 20 = 240). Add the square footage of each room to determine your home’s total square footage.

Which command displays the entire list of processes across all terminals including daemons?

Managing Linux Processes

Question Answer
Displays an entire list of processes across all terminals including daemons. -e option (entire)
The current state of the process on the processor; most processes are in the sleeping or running state. process state

Which ps options will display processes from all users and options without a controlling terminal?

u stands for a user-oriented format that provides detailed information about the processes. The x option instructs ps to list the processes without a controlling terminal.

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