My Computing Memo

Using the department server

• Connect to server

  ssh yuel5@hydra.stat.cmu.edu

• Upload and download files

  scp local_file yuel5@hydra.stat.cmu.edu:server_file

  scp yuel5@hydra.stat.cmu.edu:server_file local_file

• Useful Linux commands

  mkdir -- create new folder

  rm -- delete file

• Run the commands of a txt file in terminal

  sh terminal_commands.txt

• Keep the job alive when the computer sleeps using screen

  1. screen main.py
  2. Ctrl+A + Ctrl+D to detach from the screen session
  3. Reattach the screen by screen r

Using Vim

• Enter edit mode: i
  
• Save and quit: wq

Random tips

• Import the functions in lasso_utils.py file on server:

  Put lasso_utils.py in a subfolder called utils and add line

  from utils.lasso_utils import *

Things to check out

• parallel computing in the department server
• how to check the storage usage and view existing jobs
• how to cleverly save the results and codes used to generate the output