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In windows I find it incredibly useful to monitor total I/O read bytes to give myself an idea of how long a command line process is taking/will take to execute a task. For example, for capinfos:

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How would I get this information in linux?

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iotop let you monitor the I/O consumption of each running process :

sudo apt-get install iotop
sudo iotop -a

(-a option is to display accumulated I/O instead of bandwidth)

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For example, if I want to monitor Firefox I will run :

sudo iotop -ap 3120

(Where 3120 is the PID of Firefox)

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  • This is close to what I need, but it looks like it only displays bytes read from the time iotop has started, not total.
    – Chuu
    Oct 5, 2015 at 14:59
  • You can add iotop as a startup application ? =)
    – hg8
    Oct 5, 2015 at 15:02

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