Stuart Linux

Question 1

Augment: Display more details about files in current directory.

Answer 1

ls -l

Question 2

Augment: Display all files(even the hidden ones)

Answer 2

ls -a

Question 3

How do you find out a file type of a file?

Answer 3

file

Question 4

While using the less command how would you find the word “server3”

Answer 4

/server3

Question 5

How would you copy the file test.1 to /home/bin

Answer 5

cp test.1 /home/bin

Question 6

Augment: how would you copy a directory “dir1” to /home/lib

Answer 6

cp -r dir1 /home/lib

Question 7

How would you search for a file named networkinfo.txt throughout the system and again through the /home/bin folder

Answer 7

find / -name networkinfo.txt
find /home/bin -name networkinfo.txt

Question 8

How would you output the list of objects in your current directory to the sample.txt file

Answer 8

ls > sample.txt
> Overwrites
» adds the output to the end

Question 9

How would you see what the home directory is?

Answer 9

echo $home or env

Question 10

How would you extract the 10 character from each line of sample.txt? how about the 3rd field?

Answer 10

cut -c 10 sample.txt
cut -f 3 sample.txt

Question 11

How would you sort sample.txt alphabetically and numerically?

Answer 11

sort
sort -n

Question 12

How do you get the character/word/line count of a file

Answer 12

wc (-c/w/l)

Question 13

this command add numbers beside each line

Answer 13

nl

Question 14

This lets you search for words or numbers in a file. also how do you make it case insensitive

Answer 14

grep
grep -i

Question 15

how to VIM edit a file

Answer 15

VIM file

Question 16

how to enter insert mode

Answer 16

i

Question 17

how to copy a letter/line in VIM

Answer 17

y for a character and yy for a line

Question 18

how to delete in vim

Answer 18

d in command mode delete or backspace otherwise.

Question 19

in VIM how to get out of insert mode

Answer 19

esc

Question 20

how to paste in VIM

Answer 20

p

Question 21

in VIM how to save

Answer 21

:w

Question 22

in VIM how to quit

Answer 22

:q
or :q! to quit without saving

Question 23

how to save and exit in VIM

Answer 23

:wq or ZZ

Question 24

Location of where user information is held

Answer 24

/etc/passwd

Question 25

Location of password information

Answer 25

/etc/shadow

Question 26

Location of where group information is.

Answer 26

/etc/group

Question 27

What command changes default permissions to files

Answer 27

Umask

Question 28

How would you change default permissions to new files to makes user have RWE, RW, and RE

Answer 28

Umask 012

Question 29

How would you add a Suid to a file?

Answer 29

chmod 4755(755 generic) *filename*

Question 30

How would you add a Gid to a file?

Answer 30

chmod 2755(755 generic) *filename*

Question 31

what does ps aux do and what does aux stand for?

Answer 31

reveals detailed process information. A - ps for all users U - Detailed information X - lists processes without a TTY

Question 32

What does a TTY of "?" entail

Answer 32

? means it is a daemon that starts on boot and is terminated on shutdown. other TTY's are associated with terminal instances and can come and go.

Question 33

How would you stop a process

Answer 33

ps u to find the PID then kill *PID*

Question 34

How would you zip a file?

Answer 34

tar cvf "new file name" "files you want to zip" "file2 you want to zip" c - create v - tell the program to be verbose and let us see what it's doing f - the filename of the tar file has to come after this option, if you are creating a tar file you'll have to come up with a name

Question 35

How would you unzip a file?

Answer 35

tar xvf x - extract v - tell the program to be verbose and let us see what it's doing f - the file you want to extract

Question 36

How would you unzip the file "myfile.tar.gz" explain

Answer 36

tar xzf myfile.tar.gz - usually XVF works, however since the file has a .gz zip it needs to unzip with gunzip 1st. the "z" option unzips with gunzip 1st.

Question 37

What are Debian and RPMs package managers that do not deal with dependencies?

Answer 37

Debian - dpkg RPM - RPM

Question 38

What are Debian and RPMs package managers that deal with dependencies?

Answer 38

Debian - APT RPM - YUM

Question 39

List all devices and explain what each of the four 1st bits of each line could mean

Answer 39

ls -l /dev c - Character - not a physical device, increases functionality of system. b- Block - These devices transfer data, but in large fixed-sized blocks. You'll most commonly see devices that utilize data blocks as block devices, such as hard drives, filesystems, etc. p - Pipe - Named pipes allow two or more processes to communicate with each other, these are similar to character devices, but instead of having output sent to a device, it's sent to another process. s - Socket - Socket devices facilitate communication between processes, similar to pipe devices but they can communicate with many processes at once.

Question 40

Directory where more detailed device information is?

Answer 40

/sysfs

Question 41

Systems that automatically adds, removes and manages devices

Answer 41

udev

Question 42

how to list only 1 of the 3 types of devices (list all 3)

Answer 42

lspci lsscsi lsusb

Question 43

Directory: Essential ready-to-run programs (binaries), includes the most basic commands such as ls and cp.

Answer 43

/bin

Question 44

Directory: Contains kernel boot loader files

Answer 44

/boot

Question 45

Directory: Device files.

Answer 45

/dev

Question 46

Directory: Core system configuration directory, should hold only configuration files and not any binaries.

Answer 46

/etc

Question 47

Directory: Personal directories for users, holds your documents, files, settings, etc.

Answer 47

/home

Question 48

Directory: Holds library files that binaries can use.

Answer 48

/lib

Question 49

Directory: Used as an attachment point for removable media like USB drives.

Answer 49

/media

Question 50

Directory: Temporarily mounted filesystems.

Answer 50

/mnt

Question 51

Directory: Optional application software packages.

Answer 51

/opt

Question 52

Directory: Information about currently running processes.

Answer 52

/proc

Question 53

Directory: Information about the running system since the last boot.

Answer 53

/run

Question 54

Directory: Contains essential system binaries, usually can only be ran by root.

Answer 54

/sbin

Question 55

Directory: Site-specific data which are served by the system.

Answer 55

/srv

Question 56

Directory: Storage for temporary files

Answer 56

/tmp

Question 57

Directory: This is unfortunately named, most often it does not contain user files in the sense of a home folder. This is meant for user installed software and utilities, however that is not to say you can't add personal directories in there. Inside this directory are sub-directories for /usr/bin, /usr/local, etc.

Answer 57

/usr

Question 58

Directory: Variable directory, it's used for system logging, user tracking, caches, etc. Basically anything that is subject to change all the time.

Answer 58

/var

Question 59

this is a command line tool that supports both MBR and GPT partitioning

Answer 59

parted

Question 60

this is the GUI version of parted

Answer 60

gparted