D281 Linux Foundations - Set 4 - Part 1

Correct Answer: free

The free command shows the amount of free and used memory in the system.

Correct Answer: Running processes with detailed information

The ps aux command provides detailed information about all running processes on the system.

Correct Answer: Terminate processes

The kill command is used to terminate processes by specifying their process ID (PID).

Correct Answer: ifconfig

The ifconfig command is used to display or configure network interface settings.

Correct Answer: Disk space usage in human-readable format

The df -h command shows disk usage in a human-readable format, such as MB or GB.

Correct Answer: wc -l

The wc -l command counts the number of lines in a file.

Correct Answer: Change file permissions

The chmod command is used to modify the permissions of a file or directory.

Correct Answer: tail

The tail command displays the last 10 lines of a file by default.

Correct Answer: ls -a

The ls -a command displays all files, including hidden files (those starting with a dot).

Correct Answer: which

The which command shows the location of an executable file in the system's PATH.

Correct Answer: less

The less command displays the contents of a file one page at a time, allowing for easier navigation.

Correct Answer: chown

The chown command is used to change the ownership of files and directories.

Correct Answer: Executes commands as the superuser

The sudo command allows a permitted user to execute a command as the superuser or another user.

Correct Answer: /etc/passwd

The /etc/passwd file contains basic information about user accounts.

Correct Answer: dmesg

The dmesg command displays messages from the kernel ring buffer.

Correct Answer: fdisk -l

The fdisk -l command lists the disk partitions on the system.

Correct Answer: echo $SHELL

The echo $SHELL command displays the path of the shell being used in the current session.

Correct Answer: date

The date command displays the current date and time.

Correct Answer: printenv

The printenv command displays the system-wide environment variables.

Correct Answer: System information

The uname command shows basic system information, such as the kernel name and version.