Linux Ubuntu 18.04 Operations

Directory

0. Directory Dots

. : This directory 
.. : Upper Directory 

1. Change Directory

cd (directory name) 

2. Make Directory

mkdir (directory name)

3. Remove Directory

rm (option) (directory name) 
-r : recursion
-f : force

4. Move File (or Rename)

mv (original file path) (destination path) 

5. Show Operation History Stack

history 

6. Show File Contents

cat (file name) 

7. echo
check the value that has been delivered to OS 

echo $? 

8. touch
make empty file

touch (file name)

VIM

0. Install VIM

sudo apt-get install VIM 

1 . Open File with VIM

vim (file name) 

2. Insert Mode

press I 

3. Write

:w 

4. Quit

:q 

 

5. Overwrite

:q!

GCC

0. Install GCC

sudo apt-get install gcc 

1. Make Executable File 

gcc (file name) 

2. PreProcess

gcc -E (file name) 

3. Assembly Code

gcc -S (file name) 

4. Make File with Other Name

gcc (original .c file) -o (file name)

bashrc

Linux Environment Variables and Path Code

These Codes run when bash turns on

vim ~/.bashrc 

alias my_ws='cd ~/my_ws' 

PATH="$PATH:."