PE from bash day 2

Question 1

What type of loop will terminate if the command raises to be false

Answer 1

While

Question 2

What type of loop will terminate if the command becomes true?

Answer 2

Until

Question 3

What character can be used to match any character?

Answer 3

*

Question 4

What command would you use in order to use the output of one command as the input for another command?

Answer 4

(pipe)

Question 5

Where does information about the file system such as its size and block size reside?

Answer 5

superblock

Question 6

Scripts should first be made executable by using which command?

Answer 6

chmod 777

Question 7

what files store shell commands?

Answer 7

sh

Question 8

Which type of input is occurring in the command: myscript < mydata.txt?

Answer 8

stdin (standard input)

Question 9

If you wanted to hav a certain word set for a single letter (example when you use p, it really means pie), what command would you use to do this?

Answer 9

Alias

Question 10

What is the “s’ permission bit on a file?

Answer 10

s indicated SUID (does not run with the privileges of the user who launched it, but with that of the file owner instead)

Question 11

What utility can you use to copy a file from one machine to another?

Answer 11

SCP

Question 12

How many types of shells are there?

Answer 12

dumb question but 4

Question 13

A dot (.) in front of a file means that it’s what?

Answer 13

hidden

Question 14

How many bytes is the typical size of a unix block?

Answer 14

1024 i guess

Question 15

3 types of file permissions

Answer 15

read, write and execute

Question 16

The full path to a directory is called what?

Answer 16

absolute path (vs. relative path)

Question 17

what type of variable is usually created by the OS and defined by a capital letter?

Answer 17

system defined

Question 18

What type of permissions grant a user with all rights at the root level?

Answer 18

owner permission

Question 19

What treats each quoted argument as separate arguments?

Answer 19

@…dont @ me bro

Question 20

What would you add to the end of a script so it runs in the background?

Answer 20

&

Question 21

What decides which users are allowed to run crontab?

Answer 21

cron.allow….whatever that means