Command Line Meanings

Question 1

Takes current directory and pushes it into a list for later, then changes it to another directory. “Save where I am, then go here.”

Answer 1

pushd

Question 2

command takes the last directory you pushed and “pops” it off, taking you back there.

Answer 2

popd

Question 3

removes directory

Answer 3

rmdir or rm space then filename

Question 4

make a directory

Answer 4

mkdir

Question 5

change a directory

Answer 5

cd

Question 6

print working directory

Answer 6

pwd

Question 7

copy a file

Answer 7

cp

Question 8

see the contents of a text file

Answer 8

less

Question 9

takes the output from the command on the left, and “pipes” it to the command on the right.

Answer 9

$|$

Question 10

will take and send the input from the file on the right to the program on the left.

Answer 10

$>$

Question 11

sometimes known as commands all on their own, because they indicate the general idea of what you want. Most of the time, you can simply run a utility all by itself, without any flags or arguments. Most commands only have one

Answer 11

utility

Question 12

show it to me in long format

Answer 12

-l

Question 13

Copies the $FILE to the $LOCATION.

Answer 13

cp $FILE $LOCATION

Question 14

move. Moves the $FILE to the $LOCATION.

Answer 14

mv $FILE $LOCATION

Question 15

remove. Deletes a file permanently.

Answer 15

rm

Question 16

takes you back to the home directory

Answer 16

cd ~

Question 17

or

Answer 17

||

Question 18

if both the commands are true then it is true: (A and B)

Answer 18

and

Question 19

if both the operands are non zero then the condition is true

Answer 19

&&