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Linux上面的这个 ls | wc 命令统计结果，我有点看不懂啊？
source link: https://www.oschina.net/question/2719528_2322859
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Linux上面的这个 ls | wc 命令统计结果，我有点看不懂啊？
问题请看截图：
环境信息如下：
Linux版本如下： Linux VM_0_12_centos 3.10.0-957.21.3.el7.x86_64 #1 SMP Tue Jun 18 16:35:19 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
wc这个命令的版本： wc (GNU coreutils) 8.22
ls这个命令的版本： ls (GNU coreutils) 8.22
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