Chris Maes
2020-12-02 16:33:55
将ssh -Vgo的输出发送到stderr，你需要重定向到stdout以捕获它：
ssh -V 2>&1
因此，以下工作原理：
if [[ $(ssh -V 2>&1) == *"OpenSSH"* ]]; then echo "substring found"; fi
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啊，那很合情理。不知道版本输出到stderr。谢谢！