Terminal And Bash

Question 1

Print Working Directory Command

Answer 1

pwd - Displays the current working directory

Question 2

List Directory and files in current directory

Answer 2

ls
ls -lh (long form, human readable)
ls -lha (long form, human readable, include hidden files)

Question 3

Change Directory

Answer 3

cd
cd ~ (home directory)
cd / (root directory)

Question 4

Make directroy

Answer 4

mkdir

Question 5

Remove directory

Answer 5

rmdir

Question 6

Remove a file

Answer 6

rm
rm -r (removes directory and all it’s subdirectories and files with the -r recursive option)

Question 7

Create an empty file

Answer 7

touch

Question 8

Clear the page

Answer 8

clear

Question 9

What is an Absolute path

Answer 9

Indicates the location of a file regardless of your current location in the file system

Question 10

What is a Relative path

Answer 10

Path that starts at your current location and doesn’t require you to work backwards

Question 11

Copy command

Answer 11

cp

Question 12

Command to view a file one page at a time. Space bar to move to next page

Answer 12

more

Question 13

View a file one page at a time,
Forward, Backward, Horizontal scrolling and one line at a time

Answer 13

less

Question 14

Display top 10 lines of a file

Answer 14

head
head - (number of lines option)

Question 15

Display bottom 10 lines of a file

Answer 15

tail
tail -Number of line (option)

Question 16

Concatenate files

Answer 16

cat
cat > (copies output to a file)
cat&raquo_space; (appends the output to a file)

Question 17

Define: Data stream

Answer 17

Channels of data as they are processed and moved through a system

Data streams are used to move data from one process or program to another