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“cvs update”和“cvs update”有什么区别？和“cvs -n update”？

发布于 2025-01-01 23:44:32 字数 63 浏览 0 评论 0原文

“cvs update”和“cvs -n update”有什么区别？

我无法理解它们之间的区别。

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只是偏爱你 2025-01-08 23:44:33

区别在于，

cvs update

执行实际更新，而

cvs -n update

模拟更新并且不会更改磁盘上的任何内容。如果您进行了实际更新，它只会显示哪些文件将被更新。

引用CVS文档（针对1.12.13版本）：

`-n'
     Do not change any files.  Attempt to execute the `cvs_command',
     but only to issue reports; do not remove, update, or merge any
     existing files, or create any new files.

     Note that CVS will not necessarily produce exactly the same output
     as without `-n'.  In some cases the output will be the same, but
     in other cases CVS will skip some of the processing that would
     have been required to produce the exact same output.

The difference is that

cvs update

does an actual update, while

cvs -n update

simulates an update and won't change anything on disk. It will only show which files would be updated if you did an actual update.

Quoting the CVS documentation (for version 1.12.13):

`-n'
     Do not change any files.  Attempt to execute the `cvs_command',
     but only to issue reports; do not remove, update, or merge any
     existing files, or create any new files.

     Note that CVS will not necessarily produce exactly the same output
     as without `-n'.  In some cases the output will be the same, but
     in other cases CVS will skip some of the processing that would
     have been required to produce the exact same output.

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