并行bash循环 [英] bash loop in parallel

问题描述

我正在尝试并行运行此脚本，因为每组中i <= 4. runspr.py 本身是并行的，这样就可以了.我想做的是在任何情况下都只运行4个i循环.

I am trying to run this script in parallel, for i<=4 in each set. The runspr.py is itself parallel, and thats fine. What I am trying to do is running only 4 i loop in any instance.

在我当前的代码中，它将运行所有内容.

In my present code, it will run everything.

#!bin/bash
for i in *
do 
  if [[ -d $i ]]; then
    echo "$i id dir"
    cd $i
      python3 ~/bin/runspr.py SCF &
  cd ..
  else
    echo "$i nont dir"
  fi
done

我关注了 https://www.biostars.org/p/63816/和 https://unix.stackexchange.com/问题/35416/四个任务如何并行执行但无法并行执行代码.

I have followed https://www.biostars.org/p/63816/ and https://unix.stackexchange.com/questions/35416/four-tasks-in-parallel-how-do-i-do-that but unable to impliment the code in parallel.

推荐答案

您不需要使用 for 循环.您可以将 gnu parallel 与找到:

You don't need to use for loop. You can use gnu parallel like this with find:

find . -mindepth 1 -maxdepth 1 -type d ! -print0 |
parallel -0 --jobs 4 'cd {}; python3 ~/bin/runspr.py SCF'

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