有没有更好的方法在 bash 中运行命令 N 次? [英] Is there a better way to run a command N times in bash?

问题描述

我偶尔会像这样运行 bash 命令行:

I occasionally run a bash command line like this:

n=0; while [[ $n -lt 10 ]]; do some_command; n=$((n+1)); done

连续多次运行 some_command -- 在本例中为 10 次.

To run some_command a number of times in a row -- 10 times in this case.

通常some_command实际上是一个命令链或管道.

Often some_command is really a chain of commands or a pipeline.

有没有更简洁的方法来做到这一点?

Is there a more concise way to do this?

推荐答案

如果你的范围有一个变量，使用 seq，像这样:

If your range has a variable, use seq, like this:

count=10
for i in $(seq $count); do
    command
done

简单地说:

for run in {1..10}; do
  command
done

或者作为单行，对于那些想要轻松复制和粘贴的人:

Or as a one-liner, for those that want to copy and paste easily:

for run in {1..10}; do command; done

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