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I suspect that there is some replicate (many instances) process that is overloading the CPU of my FreeBSD 10.3 (pfSense v2.3) computer, but I don't know what its name could be.

The process is probably a .sh script of mine, but I have many of them, and some of them call anothers.

Is there any (preferably CLI) method to detect these multiple instances of the same process?

I have researched, but solutions are for Linux, and syntax is not exactly the same for some commands, like uniq.

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    Perhaps like this: ps ax -o command | sort | uniq -d – Satō Katsura Jul 11 '16 at 20:48
  • @SatoKatsura: What does -o command means? – Sopalajo de Arrierez Jul 11 '16 at 20:52
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    Basically show only the command line. man ps for details. – Satō Katsura Jul 11 '16 at 20:55
  • @SatoKatsura , your suggestion seems to be working nice. Is there any need to run it as root? – Sopalajo de Arrierez Jul 11 '16 at 21:01
  • If you only care about your own processes, then no. – Satō Katsura Jul 11 '16 at 21:03
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While we wait for Sato Katsura to answer the question, this (his) method works fine:

ps ax -o command | sort | uniq -d

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