command line Flashcards
hostname
my computers network name
pwd
print working directory
mkdir
make directory
cd
change directory
ls
list directory
rmdir
remove directory
pushd
push directory
popd
pop directory
cp
copy a file or directory
mv
move a file or directory
less
page through a file
cat
print the whole file
xargs
execute arguments
find
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
grep
find things inside files
man
read a manual page
apropos
find what man page is appropriate
env
look at your environment
echo
print some arguments
export
export/set a new environment variable
exit
exit the shell
sudo
DANGER! become super user root DANGER!
chmod
change permission modifiers
chown
change ownership
rm -Rf
remove a file
command k
clear terminal
touch
make a file
cp -r
copy directory with files in it
q
go back in terminal
|
takes the output from the command on the left, and “pipes” it to the command on the right
<
take and send the input from the file on the right to the program on the left.
>
takes the output of the command on the left, then writes it to the right on the file
> >
takes the output of the command on the left, then appends it to the file on the right
*
matches anything in a wildcard like *.txt
man
use to define commands
example: man grep
control d
to exit program like python from terminal
