mongodb - mongostat只获取2次信息就停止，如何实现？

Question

mongostat 默认或一直获取信息，添加什么参数可以实现制获取2次或者有限次信息就停止呢？通过Linux shell脚本里面写的。 --rowcount 参数和--discover参数同时使用的话，不生效。

Answer 1

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Answer 2

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Answer 3

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Answer 4

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