22
May
2010
Change crontab editor
Crontab also known as schedule task in Windows Operating System and it is very important for you to schedule your automated script run from anytime without actually taking care on those script time by time in front of your server/PC.
All of the time, vi editor have set as the default editor for crontab and if you like Mick Genie that not like vi but like nano/pico, you may actually change the editor as step below.
Method 1:
3
Jan
2010
Linux Top Process
When you used Linux top process to monitor your server/PC, you might want to know what meant by the Cpu(s) variable used in percentage.
Eg.
top – 16:24:04 up 80 days, 18:23, 1 user, load average: 0.48, 0.46, 0.44
Tasks: 226 total, 2 running, 222 sleeping, 0 stopped, 2 zombie
Cpu(s): 2.2%us, 2.5%sy, 0.4%ni, 92.0%id, 3.0%wa, 0.0%hi, 0.0%si, 0.0%st
1. us -> User CPU time: The time the CPU has spent running users’ processes that are not niced.
2. sy -> System CPU time: The time the CPU has spent running the kernel and its processes.
3. ni -> Nice CPU time: The time the CPU has spent running users’ proccess that have been niced.
4. wa -> iowait: Amount of time the CPU has been waiting for I/O to complete.
5. hi -> Hardware IRQ: The amount of time the CPU has been servicing hardware interrupts.
6. si -> Software Interrupts.: The amount of time the CPU has been servicing software interrupts.
Original Source: http://www.seoforclients.com/hr/top/
![[Google]]( http://linux.mickgenie.com/wp-content/plugins/easy-adsenser/google-light.gif)