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与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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第一个标准错误输出输出到终端,标准输出输出到output.txt中;
第二个标准输出和标准错误输出都会输出到output.txt中。

解析:bash执行是有循序的,执行第一条命令时,标准错误输出输出到标准输出,而这时标准输出输出到终端,然后标准输出才输出到output.txt。


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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