Bash

Question 1

What is Bash?

Answer 1

Short for Bourne Again SHell. It’s a command line interpreter

Question 2

man ls

Answer 2

takes you to the manual for all the details on the command “ls”

Question 3

What are the commands for:
copy a file,
remove a file

Answer 3

cp filename.txt newfile.txt,

rm filename.txt

Question 4

cat

Answer 4

concatenates files together, or just prints to screen

Question 5

what are the commands for:
print the directory you are in,
list the contents of the directory you are in,
list the contents of another directory

Answer 5

pwd,
ls,
ls foldername

Question 6

ls -l foldername

Answer 6

list the long details for all the contents of the folder

Question 7

What are the commands for:
create a directory
remove a directory

Answer 7

mkdir directoryname

rmdir directoryname

Question 8

How to look at the contents of a file:
print out the whole thing to the screen
print out part of a long file so you can step through
peek at the beginning of the file
peek at the last lines of the file

Answer 8

cat filename.txt
more filename.txt (space to move through, q to quit)
head filename.txt
tail filename.txt

Question 9

what is tilde expansion or brace expansion?

Answer 9

Using tilde or braces in shortcuts for long or repeated commands

Question 10

cd ~

cd ~-

Answer 10

change to home directory

change to last directory I was in (old pwd)