12 TOP Command Examples in Linux.pdf

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7/29/13 12TOPCommandExamplesinLinux

# top

Linux Top Command

2. Sorting with -O (Uppercase Letter ‘O’).

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Sorting Process ID’s with Top

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Sorting Process ID’s

3. Display Specific User Process

Use top command with ‘u‘ option will display specific User process details.

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Top with Specific User Processes 4. Highlight Running Process in Top

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Top Process with Colorful

5. Shows Absolute Path of Processes

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Top with Specific Process Path

6. Change Delay or Set ‘Screen Refresh Interval’ in Top

By default screen refresh interval is 3.0 seconds, same can be change pressing ‘ d‘ option in running top command and change it as desired as shown below.

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Top – Set Refresh Time

7. Kill running process with argument ‘k’

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Top – Kill Process ID 8. Sort by CPU Utilisation

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Top – High CPU Utilization 9. Re nice a Process

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Top – Renice Process

10. Save Top Command Results

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Top Command Save Results 11. Getting Top Command Help

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Bio Latest Posts

Top Command Help

12. Exit Top Command After Specific repetition

Top output keep refreshing until you press ‘q‘. With below command top command will automatically exit after 10 number of repetition.

# top -n 10

There are number of arguments to know more about top command you may refer man page of top command. Please share it if you find this article useful through our comment box below.

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7/29/13 12TOPCommandExamplesinLinux Ravi Saive

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Ravi Saive says: August 28, 2012 at 9:47 pm @Victor Ostorga,

Thanks for pointing out, corrected now. Reply

2. Ashokkumar says:

September 17, 2012 at 6:45 pm Thanks.

Nice tutorial.

I m recently joined as system engineer.

Actually I dont know what top command performs, i have followed what you did in the screen. I got same result. Can you explain what is the purpose of this command?

How do I identify any wrong(process) in the terminal? Thanks

Reply

Ravi Saive says: September 17, 2012 at 6:55 pm

@AshokKumar – the top command is used to monitor real time running processes in Linux. It is used to identify which processes is utilizing high CPU or memory usage. so you can kill that process with top command as we mentioned above.

Reply

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7/29/13 12TOPCommandExamplesinLinux February 4, 2013 at 6:47 pm

I tried write the top results to file, but i am not able to read the data, data is not well organised. Reply 4. Moosh says: March 13, 2013 at 6:25 pm I use htop Reply 5. gigi says: April 6, 2013 at 7:13 pm don’t forget ps-aux Reply 6. ferdinandp says: June 18, 2013 at 11:36 pm htop here… Reply

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12 TOP Command Examples in Linux.pdf

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