basic commands

Question 1

echo

Answer 1

print screen(-n = do not print)

Question 2

pwd

Answer 2

show location

Question 3

what is the anatomy of a command

Answer 3

[command][arguments…]

Question 4

tar

Answer 4

an archival command that can archive, compress, and extract files, but to make it work, you need to tell it which files to take action on, and what exactly to do with those files

Question 5

tar -c -z -f

Answer 5

create zip file(flags)

Question 6

[man][command]

Answer 6

show the manual of a certain command

Question 7

cd

Answer 7

change current directory

Question 8

ls

Answer 8

see what’s in a directory

Question 9

cd ~

Answer 9

go to home directory

Question 10

mkdir

Answer 10

make a directory in current location

Question 11

[touch][filename.example]

Answer 11

create a new file

Question 12

mv

Answer 12

move or rename a file. example:
[mv][filename][newname]
[mv][source][destination]
[mv][filename][location]
[mv][subfolder/file][newname](will rename file and move it to current folder)

Question 13

rm

Answer 13

remove a file

Question 14

rm -r

Answer 14

remove a folder and all its contents

Question 15

cat

Answer 15

print out all the contents of a file

Question 16

head

Answer 16

print the first few lines of a file

Question 17

tail

Answer 17

print the last few lines of a file

Question 18

more

Answer 18

print out the contents of a file, but only fill one screen’s worth at a time

Question 19

less

Answer 19

The less command allows you to go forward one line with the down arrow, backward one line with the up arrow, and backward and forward a page with the page up and page down keys. You can also use the space bar in the same way you can with the more command

Question 20

/

Answer 20

root directory

Question 21

.

Answer 21

current directory

Question 22

..

Answer 22

one level up

Question 23

../..

Answer 23

two levels up

Question 24

*

Answer 24

The “splat” or “glob” operator. This is the wildcard of the command line and represents “any characters”

Question 25

cp

Answer 25

Copy one or more files to a new location

Question 26

touch

Answer 26

Create a new file or update modification time if a file with that name exists

Question 27

mkdir -p

Answer 27

create a nest of directories

Question 28

which

Answer 28

To figure out a default executable’s location

Question 29

env

Answer 29

You can see exactly what variables have been set,

Question 30

ls -a

Answer 30

show hidden files

Question 31

$PATH

Answer 31

show the path to a file