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The Linux Juggernaut

The Linux Juggernaut

roles on……

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top command discreption

This is my first video with my voice(i do have many videos with out audio till this point, have a look at our  LINUXNIX youtube channel ). Please bare with my English as I am not a native speaker.  Please feel free to comment on this which will improve our future videos and content. Here is the Video for you.

TOP COMMAND YOUTUBE VIDEO

Top command options:

Line1: Gives System present time, up time of the machine, number of users logged in, Load average on system at 5, 10, 15 min interval.

Line2: Gives total number of process on the machine, number of running process, number of sleeping process, number of stopped process, number of Zambie process.

Line3: Gives you CPU details

Line4 &  5: Gives RAM and SWAP details.

Line6: To execute top command shortcuts(See below for the list of top command shortcuts ).

From Line7: dynamically displayed top process results.

 top commands shortcuts:

Note: Press below shortcuts at the time of running top command.

l --To display or to hide load average line

t --To display or to hide task/cpu line

1 --To display or hide all other CPU's

m --to display or to hide RAM and SWAP details

s --To change the time interval for updating top results(value is in sec's)

R --To sort by PID number

u -- Press u then username to get only that user process details

P --To sort by CPU utilization 

M --To sort by RAM utilization 

c --To display or hide command full path

r --To renice a process, press r then the PID no then the renice value to renice a process.

k --To kill a process, press k then PID number then enter to kill a process

w --To save the modified configuration permanently.

q --To quit the top command. 
h --for getting help on top command

Please share your thoughts about this video at the comments section.

Do you like www.linuxnix.com ? Please consider supporting us by becoming a subscriber and get a Linux basics e-book for free.
bySurendra Anne On Friday-August - 5 - 2011
  • Pingback: Swap utilization going over - LINUX REVIEW – LINUX REVIEW

  • Sundaramb

    A nice presenation

    • http://www.linuxnix.com Surendra

      Thanks man..!

  • Soumyasj244

    hi surendra!
    Is there any way to kill the process without using PID ,rather considering some other parameter like time or memory utilized?!

    • http://www.linuxnix.com Surendra

      We can write a shell script to kill the process which are running for more time and using high memory

  • Soumyasj244

    and can we use these commands in a batch file?

    • http://www.linuxnix.com Surendra

      Can you elaborate your question bit more?

  • Ritesh_kaithwas

    Hi, I want to know about RES column in TOP Command. Is it affects server process performance? How?

    • http://www.linuxnix.com Surendra

      It represents actual shared Physical memory used by process. It effects server process performance bcz its nothing but RAM utilization. So the small RES number the less RAM is used.

  • Mariam

    I just want top to display/count number of running processes and all available memory space, no more details. Is there a simple command for that?

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  • About Me

    Surendra Kumar Chowdary

    My name is Surendra Kumar Anne. I am from Vijayawada which is cultural capital of south Indian state of Andhra Pradesh. I am a Linux evangelist who believes in Hard work, A down to earth person, Likes to share knowledge with others, Loves dogs, Likes photography. At present i work at Persistent Systems as Module Lead.   read more »