command line Flashcards
(36 cards)
0
Q
hostname
A
my computers network name
1
Q
pwd
A
print working directory
2
Q
mkdir
A
make directory
3
Q
cd
A
change directory
4
Q
ls
A
list directory
5
Q
rmdir
A
remove directory
6
Q
pushd
A
push directory
7
Q
popd
A
pop directory
8
Q
cp
A
copy a file or directory
9
Q
mv
A
move a file or directory
10
Q
less
A
page through a file
11
Q
cat
A
print the whole file
12
Q
xargs
A
execute arguments
13
Q
find
A
find files
find STARTDIR -name WILDCARD - print
example: find . -name “*.txt” - print | less
less is to show files on the same screen on the terminal
14
Q
grep
A
find things inside files
15
Q
man
A
read a manual page
16
Q
apropos
A
find what man page is appropriate
17
Q
env
A
look at your environment
18
Q
echo
A
print some arguments
19
Q
export
A
export/set a new environment variable
20
Q
exit
A
exit the shell
21
Q
sudo
A
DANGER! become super user root DANGER!
22
Q
chmod
A
change permission modifiers
23
Q
chown
A
change ownership
24
rm -Rf
remove a file
25
command k
clear terminal
26
touch
make a file
27
cp -r
copy directory with files in it
28
q
go back in terminal
29
|
takes the output from the command on the left, and "pipes" it to the command on the right
30
<
take and send the input from the file on the right to the program on the left.
31
>
takes the output of the command on the left, then writes it to the right on the file
32
>>
takes the output of the command on the left, then appends it to the file on the right
33
*
matches anything in a wildcard like *.txt
34
man
use to define commands
example: man grep
35
control d
to exit program like python from terminal
