commands

Question 1

what does this cmd do

<p>pwd</p>

Answer 1

<p> print working directory</p>

Question 2

what does this cmd do

<p>hostname</p>

Answer 2

<p> my computer's network name</p>

Question 3

what does this cmd do

<p class=”large” style=”text-align:center”;>mkdir</p>

Answer 3

<p class=”large” style=”text-align:center”;> make directory</p>

Question 4

what does this cmd do

<p>cd</p>

Answer 4

<p> change directory</p>

Question 5

what does this cmd do

<p>ls</p>

Answer 5

<p> list directory</p>

Question 6

what does this cmd do

<p class=”large” style=”text-align:center”;>rmdir</p>

Answer 6

<p class=”large” style=”text-align:center”;> remove directory</p>

Question 7

what does this cmd do

<p>pushd</p>

Answer 7

<p> push directory</p>

Question 8

what does this cmd do

<p class=”large” style=”text-align:center”;>popd</p>

Answer 8

<p class=”large” style=”text-align:center”;> pop directory</p>

Question 9

what does this cmd do

<p>cp</p>

Answer 9

<p> copy a file or directory</p>

Question 10

what does this cmd do

<p class=”large” style=”text-align:center”;>mv</p>

Answer 10

<p class=”large” style=”text-align:center”;> move a file or directory</p>

Question 11

what does this cmd do

<p>less</p>

Answer 11

<p> page through a file</p>

Question 12

what does this cmd do

<p class=”large” style=”text-align:center”;>cat</p>

Answer 12

<p class=”large” style=”text-align:center”;> print the whole file</p>

Question 13

what does this cmd do

<p>xargs</p>

Answer 13

<p> execute arguments</p>

Question 14

what does this cmd do

<p>find</p>

Answer 14

<p> find files</p>

Question 15

what does this cmd do

<p class=”large” style=”text-align:center”;>grep</p>

Answer 15

<p class=”large” style=”text-align:center”;> find things inside files</p>

Question 16

what does this cmd do

<p>man</p>

Answer 16

<p> read a manual page</p>

Question 17

what does this cmd do

<p class=”large” style=”text-align:center”;>apropos</p>

Answer 17

<p class=”large” style=”text-align:center”;> find what man page is appropriate</p>

Question 18

what does this cmd do

<p>env</p>

Answer 18

<p> look at your environment</p>

Question 19

what does this cmd do

<p>echo</p>

Answer 19

<p> print some arguments</p>

Question 20

what does this cmd do

<p class=”large” style=”text-align:center”;>export</p>

Answer 20

<p class=”large” style=”text-align:center”;> export/set a new environment variable</p>

Question 21

what does this cmd do

<p>exit</p>

Answer 21

<p> exit the shell</p>

Question 22

what does this cmd do

<p class=”large” style=”text-align:center”;>sudo</p>

Answer 22

<p class=”large” style=”text-align:center”;> DANGER! become super user root DANGER!</p>

Question 23

what does this cmd do

<p>chmod</p>

Answer 23

<p> change permission modifiers</p>

Question 24

what does this cmd do

<p>chown</p>

Answer 24

<p> change ownership</p>