Basic Commands Flashcards
1
Q
pwd
A
Print working directory
2
Q
hostname
A
My computer’s network name
3
Q
mkdir
A
Make directory
4
Q
cd
A
Change directory
5
Q
ls
A
List directory
6
Q
rmdir
A
Remove directory
7
Q
pushd
A
Push directory
8
Q
popd
A
Pop directory
9
Q
cp
A
Copy a file or directory
10
Q
mv
A
Move a file or directory
11
Q
less
A
Page through a file
12
Q
cat
A
Print the whole file
13
Q
xargs
A
Execute arguments
14
Q
find
A
Find files
find start directory -name pattern -print
Need to double quote the pattern
15
Q
grep
A
Find things inside files
16
Q
man
A
Read a manual page
17
Q
apropos
A
Find which manual page is appropriate
18
Q
env
A
Look at your environment
19
Q
echo
A
Print some arguments
20
Q
export
A
Export/set a new environment variable
21
Q
exit
A
exit the shell
22
Q
sudo
A
DANGER! become super user root DANGER!
23
Q
chmod
A
Change permission modifiers
24
Q
chown
A
Change ownership
25
LHS | RHS
Take the output of the command on the LHS and pipe it in as the input for the RHS
26
LHS < RHS
Use RHS as the input for LHS
27
LHS > RHS
Put the output of LHS into RHS
28
LHS >> RHS
Append the output of LHS to RHS (doesn’t overwrite RHS)
29
.
the working directory
30
..
Parent of the working directory
