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find.-name*.py|xargsgrepsome_function
cathosts|xargs-I{}sshroot@{}hostname
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#dosomethingincurrentdir
(cd/some/other/dir;other-command)
#continueinoriginaldir
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TCPKeepAlive=yes
ServerAliveInterval=15
ServerAliveCountMax=6
StrictHostKeyChecking=no
Compression=yes
ForwardAgent=yes
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catab|sort|uniq>c#cisaunionb并集
catab|sort|uniq-d>c#cisaintersectb交集
catabb|sort|uniq-u>c#cissetdifferencea-b差集
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