Color schemes for GNOME Terminal and iTerm2

http://mayccoll.github.io/Gogh/

• Using the given command, you can fetch the themes.
• To activate the theme, go to Terminal > Change Profile > Default
• Every new theme is added as Default, so rename them as soon as you downloaded them to be able to choose.

Using subprocesses with multiprocessing

When using multiprocessing, os.system calls may not be killed on Ctrl+C. Instead, use subprocess.call(<command>).

import multiprocessing as mp
import subprocess
import time

def wait(i):
    subprocess.call('sleep %d' % i, shell=True)
    print(i)
    return i

pool = mp.Pool(processes=4)
x = range(4)
start = time.time()
try:
    pool.map(wait, x, 1)
finally:
    pool.close()
    pool.join()
duration = time.time() - start
print('Done in %.2f s' % duration)

will output

0
1
2
3
Done in 3.0 s

Setting nodes to alive

All your nodes are suspected because you are still in a prototyping phase

Just simple command for loop :

for i in $(seq 1 6); do sudo oarnodesetting -r $i -s Alive; done

Get the public ip from command line

You want to know what is your public ip from the command line.

You can use one of the following command :

• Command 1. Using wget

  wget http://ipecho.net/plain -O - -q ; echo
  

• Command 2: Using curl

  curl ipecho.net/plain; echo
  

• Command 3: Using wget

  wget http://observebox.com/ip -O - -q ; echo
  

• Command 4: Using curl

  curl icanhazip.com
  

• Command 5: Using curl

  curl ifconfig.me
  

src : 5 Commands to Get Public IP using Linux Terminal

Deleting a node

First set state to Dead :

sudo oarnodesetting -s Dead -r $i

Then use oarremoveresource :

oarremoveresource $i