Command line red hat linux

The Bash shortcut that re-executes a specific command in the history list

!number

The Bash shortcut used to re-execute a recent command by matching the command line

!string

Commands discards all messages normally sent to the terminal

&>/dev/null

Command sends both output and errors to a file, creating it or overwriting its contents

&>file

Pattern will match only filenames that contain a number?

*[[:digit:]]*

Pattern that match only filenames ending with "b"

*b

Pattern will match all filenames containing a "b"

*b*

the directory that is the Top of the systems file system hierarchy

/

the directory that contains persistent system specific configuration data

/Etc

What is the name of the device file of an entire SATA hard drive in the /dev directory?

/dev/sda

the device file name of the third partition on the second SATA hard drive.

/dev/sdb3

What is the name of the device file for the entire second virtio-blk disk attached to a virtual machine?

/dev/vdb

The name of the device file for the third partition on the second virtio-blk disk attached to a virtual machine?

/dev/vdb3

file represents the location of the local group information?

/etc/group

file represents the location of the local user account information?

/etc/passwd

the directory which contains users home directories

/home

the directory that is the administrative superuser's home directory

/root

the directory that contains non-persistent process runtime data

/run

the directory which contains temporary files

/tmp

the directory that contains installed software programs and libraries

/usr

the directory which contains regular commands and utilities

/usr/bin

the directory that contain Dynamic data such as for databases and websites

/var

Which directory accommodates the human-readable syslog files?

/var/log

What file stores console messages related to system startup?

/var/log/boot.log

Which file stores syslog messages related to the scheduled jobs?

/var/log/cron

Which file stores syslog messages related to the mail server?

/var/log/maillog

Which log file stores most syslog messages, with the exception of those that are related to authentication, mail, scheduled jobs, and debugging?

/var/log/message

Which log file stores syslog messages related to security and authentication operations in the system?

/var/log/secure

Which task(s) can be performed with Red Hat Subscription Management tools?

1 Register a system. 2 Subscribe a system. 3 Enable repositories. 4 Review and track entitlements.

Which number is the size, in bits, of an IPv6 address?

128 bits

Command displays output to a terminal and ignores all errors

2>/dev/null

Which number is the size, in bits, of an IPv4 address?

32 bits

The Bash command that separates commands on the same line

;

Command sends output and errors to the same file ensuring existing file content is preserved

>>file2>&1

Command saves output to a file and discards error messages

>file 2> /dev/null

Command sends output to a file and sends errors to a different file

>file2>file2

pattern will match only filenames at least three characters in length

???*

the command that is used to return to the current user's home directory

Cd

the command that will always return you to the working directory used prior to your current working directory

Cd -

the command that will always change the working directory to the parent of the current location

Cd ..

the command that will change the working directory to /tmp if the working directory is /home/student.

Cd ../../tmp

the command that changes the working directory up two level from the current location

Cd../..

The command that will always change the working directory to bin

Cd/bin

Benefits of open source software for the user

Code can survive the loss of the original developer. You can learn from real world code and develop more effective applications.

The Bash shortcut that jumps to the end of the command line

Ctrl+A

The Bash shortcut used to clear characters from the cursor to the end of the command line

Ctrl+K

Bash shortcut that jumps to the beginning of the previous word on the command line

Ctrl+LArrow

The Bash shortcut that copies the last argument of the previous command

Esx+.

item represents a number that identifies the group at the most fundamental level?

GID

The Bash command that displays the list of previous commands

History

item represents the location of the user's personal files?

Home directory

two statements that describe the benefits of Linux

Linux is modular and can be configured as a full graphical desktop or a small appliance. Linux includes a powerful and scriptable command line interface enabling any easier Automation and provisioning.

item represents the program that provides the user's command-line prompt

Login shell

the fourth field of the /etc/passwd file

Primary group

the command that displays the absolute path name of the current location

Pwd

Which GUI tool is used to register and subscribe a system?

Red Hat Subscription Manager

Which state represents a process that is sleeping until some condition is met?

S

Which state represents a process that has been stopped or suspended?

T

The Bash shortcut used to complete commands, file names, and options.

Tab

this term describes the Interpreter that executes commands typed as a string

The Shell

Item represents a number that identifies the user at the most fundamental level

UID

Which state represents a process that has released all of its resources except its PID?

Z

Pattern that will match only filenames where the first character is not "b"

[!b]*

Pattern will match only filenames that begin with an uppercase letter

[[:upper:]]*

Pattern that will match only filenames beginning with "b"

b*

Which command provides an overview of the file system mount points and the amount of free space available in SI units?

df -H

Which process does a parent use to duplicate to create a new child process?

fork

the command that lists the files in the current location, using long format, and including hidden files

ls -al

Which term allows one system to send traffic to a special IP address that is received by multiple systems?

multicast

Which term determines how many leading bits in the IP address contribute to its network address

netmask

this term describes the hardware display and physical keyboard used to interact with the system

physical console

Which service sorts and organizes syslog messages into files in /var/log?

rsyslog

Which command is used to register a system without using a graphical environment?

subscription-manager

this term describes a few part of the command line that specifies the Target that the command should operate on

the argument

this term describes the name of a program to run.

the command

this term describes the parts of the command line that adjust the behavior of the command

the option

this term describes the visual cue that indicates an interactive shell is waiting for the user to type a command.

the prompt

the term that describes an interface that provides a display for output and a keyboard for input to a shell session

the terminal

Two ways that red hat develops their products for the future and interacts with the community and interacts with the community.

they sponsor and integrate open source projects into the community-driven Fedora project. Participates in Upstream projects.

this term describes one of multiple logical consoles that can eat support an independent login session

virtual console

Command sends output to both the screen and a file at the same time

| tee file