Sunday, January 26, 2014

Linux process management in foreground background


http://stackoverflow.com/questions/9190151/how-to-run-a-shell-script-in-the-backgroung-and-get-no-output

http://linuxg.net/how-to-manage-background-and-foreground-processes/

http://unix.stackexchange.com/questions/45025/how-to-suspend-and-bring-a-background-process-to-foreground


How to run a job in background
======================

nohup /path/to/your/script.sh > /dev/null 2>&1 &


How to view background process
======================
 
jobs



How to move job from foreground to background and vice versa
=======================================

fg %jobid

bg %jobid

How to kill background jobs
======================

 
kill -19 %job_id





Saturday, January 18, 2014

Linux GUI based browsing using vncserver and vncviewer


Main Source
==========

http://rcweb.kaust.edu.sa/KAUST/ResearchComputing/wiki/Workstation#HowtoruntheVNCServerLinuxWorkstation



Example:
========
user: alamt
serverIP: 10.68.170.137

Step1: Login to server
==============
ssh alamt@10.68.170.137


Step2: Start vncServer in login server
========================
vncserver –geometry 1600x1024

Step3: Check the port no for vncServer in login server
=================================

 ps -ef | grep vnc | grep alamt
// It will show a big list with following port info by rfbport

 -rfbport 5905 ( so in this example portno for vncserver is 5905)
 -Xvnc :5 (so in this example screen ID is 5)

Step4: From client , run vncViewer
=====================

vncviewer 10.68.170.137:5905

Step5: Kill/Stop vncserver from login server
===========================
 vncserver -kill:5