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Curl 的独立连字符 (-) 是什么意思？

tag-icon • tag-icon command-line curl parameter
Curl 的独立连字符 (-) 是什么意思？

此命令中的独立连字符（位于-C&之间-O）代表什么？

curl -C - -O http://www.intersil.com/content/dam/Intersil/documents/fn67/fn6742.pdf

FWIW-我正在遵循教程这里。

答案1

-C -根据输入和输出文件自动确定如何恢复传输。

从man curl（注意第二段）：

   -C/--continue-at <offset>
          Continue/Resume a previous file transfer at the  given  offset.
          The  given  offset  is  the  exact number of bytes that will be
          skipped, counting from the beginning of the source file  before
          it  is  transferred  to the destination.  If used with uploads,
          the FTP server command SIZE will not be used by curl.

          Use "-C -" to tell curl to automatically find out where/how  to
          resume  the transfer. It then uses the given output/input files
          to figure that out.

          If this option is used several times,  the  last  one  will  be
          used.

答案2

它只会从最后一个位置恢复下载，从男子卷曲:

   -C/--continue-at <offset>
          Continue/Resume a previous file transfer at  the  given  offset.
          The  given  offset  is  the  exact  number of bytes that will be
          skipped, counting from the beginning of the source  file  before
          it is transferred to the destination.  If used with uploads, the
          FTP server command SIZE will not be used by curl.

          Use "-C -" to tell curl to automatically find out  where/how  to
          resume  the  transfer. It then uses the given output/input files
          to figure that out.

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