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Asked: 2026-05-26T19:40:22+00:00

1.only fork 2. only exec 3. both fork & exec This may be a

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1.only fork 2. only exec 3. both fork & exec

This may be a simple question, but I’m really confused with it. I’m really a newbie and don’t know how to figure it out.

I’ll be very glad if someone can explain it to me.

Thank u very much.

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1 Answer

  1. Editorial Team

    indeed, many.

    use strace top to see.

    ADDITION:

    In fact, there is no fork but an exec:

    [pengyu@pengyu-Studio-1747 temp]$strace top 2> a.txt
[pengyu@pengyu-Studio-1747 temp]$cat a.txt | grep fork
[pengyu@pengyu-Studio-1747 temp]$cat a.txt | grep exec
execve("/usr/bin/top", ["top"], [/* 60 vars */]) = 0
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