After scanning all option args (that is, those prefixed by a hyphen), if it finds one more arg, it takes it to be the name of the input file and tries to open it for reading.

在扫描了所有的选项参数(也就是那些以连字符为前缀的参数)后，如果selpg发现还有一个参数，则它会接受该参数为输入文件的名称并尝试打开它以进行读取。

youdao

For -opt, the value of arg is used as the replacement value only if a value has been defined for all of the listed variables.

对于- opt，只有为列出的所有变量定义一个值时，才能将arg的值用作替换值。

youdao

For -neg, the value of arg is used as the replacement value only if a value has not been defined for all of the listed variables.

对于- neg，只有没有为所有列出的变量定义值时，才能将arg的值用作替换值。

youdao

The reBang weblog in particular has been doing lots of digging into the legitimacy of the group, and while not turning up anything conclusive, it has led to a wide range of speculation, even including remote possilibility that it's all an elaborate Alternate Reality Game (ARG).

ENGADGET: Group promises dedicated VR "Neuronet," skepticism ensues