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关于read命令的一个小问题
斑竹啊,偶还是不明白... >_<
IFS Internal field separators, normally space, tab, and
newline (see Blank Interpretation section).
......
Blank Interpretation
After parameter and command substitution, the results of
substitution are scanned for internal field separator char-
acters (those found in IFS) and split into distinct argu-
ments where such characters are found. Explicit null argu-
ments ("" or '') are retained. Implicit null arguments
(those resulting from parameters that have no values) are
removed.
以上是man sh得到的其中几段话,哪位帮忙可以解释下explicit null arguments & implicit null arguments,如果可以的话,把这里的第二段话翻译一下  |
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