20140927 Learning how to mount from my co-worker in deatil

20140927 Learning how to mount from my co-worker in detail. Tips) How to install zshell !

in Sudo authority, check the disk in in your Linux
>> fdisk -l
>> df -h

If not, you should partition the disk first
>> fdisk /dev/sdb 
>> m for help
>> n for adding a new partition
>> p for primary
>> w

>> fdisk -l : checking it is right


Format file_system of the new disk
>> mkfs.ext4 /dev/sdb1

So far, completing the formatting of the new disk
then we should mount the new disk from the root to the local disk.

How to do it?
- mkdir some folder in your local disk
- sudo mount /dev/sdb1 the folder name/ -t ext4

Then Change the folder's authority to yours
>>sudo chown jjoon ./the folder name.


Tips) How to install zshell !
http://gumdaeng.com/2014/05/23/zsh-install/

Pictures)

    

http://byjoo.tistory.com/entry/etcfstab linux의 기본

  Thanks        gumdaengei

 Taking a note about xPad
Python lecture
2 Papers
Datamining
Textbook 4,5 Chapters

Degree (Graph theory)
- The degree of a vertex of a graph is the number of edges incident to the vertext with loops counted twice.

Hadoop) In order to execute some program, its extension should be .jar file, not .java file.

jar -cvf 생성할파일.jar 해당폴더명


hadoop fs -copyFromLocal abc.txt /input
hadoop fs -copyToLocal /output .

hadoop fs -rmr
hadoop jar WordCount.jar /input/abc.txt /output

1) javac WordCount.java
2) jar cmf main.txt WordCount.jar WordCount*.class
To set up which is Main class
3) in main.txt Main-Class: WfordCount

./oh_my-zsh
./tools/theme_chooser.sh
vim ~/.zshrc // being able to choose theme

In vim
command vs, sp

Ctrl + z / fg
python multiply.py matrix.json | more
>>>help()
tmux new -s tmux_window
tmux attach - t tmux_window
Ctrl + B / D, :