examples

Question 1

cd /

Answer 1

change to root directory

Question 2

cd ~

Answer 2

change to home directory

Question 3

ls /

Answer 3

show files and dir in root

Question 4

ls /*ot

Answer 4

show all files in root that end with ot

Question 5

mkdir ~/cli-tmp

Answer 5

make a directory in your home directory called cli-tmp

Question 6

cd cli-tmp

touch in-cli-tmp

Answer 6

navigate to cli-tmp and create a file called in-cli-tmp

Question 7

rm -r cli-tmp

Answer 7

remove directory

Question 8

mkdir -p ~/cli-tmp/parent/child/grandchild

Answer 8

create a nest of directories in the home directory

Question 9

mv bob grandchildren

Answer 9

move bob file to grandchildren directory

Question 10

cp -r grandchildren ../nephews

Answer 10

copy and rename grandchildren into nephews one directory up

Question 11

PS1=”\u@\w$ “

Answer 11

change prompt

Question 12

echo ‘export PS1=”this is a test$ “’&raquo_space; ~/.bashrc

Answer 12

export prompt

Question 13

nano ~/.bashrc
^o + enter
^x

Answer 13

open bashrc in nano to edit file
save file
exit

Question 14

source ~/.bashrc

Answer 14

rerun bashrc

Question 15

\h
\u
\w
\W
\d
\n

Answer 15

hostname
username
current directory
basename of current directory
current date
newline

Question 16

$PATH

Answer 16

determines which files can be executed without specifying their path explicitly.

Question 17

what two types of permissions are there

and what types are there of those specific permissions

Answer 17

ownership:user,group,other and access:read,write,execute