Scp needs the "-p" flag, and rsync needs the "-a" flag.

scp 需要 "-p" 标志，rsync 需要 "-a" 标志。

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Prof and gprof require code to be compiled with either the -p or -gp flag to provide information on the number of times a function is called, who called the function, and the like.

prof和gprof要求用—p或—gp标志编译代码，从而提供调用函数的次数、函数的调用者等信息。

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The -p flag prompts for a no-echo password.

p标志将提示您输入一个无回显的密码。

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