Question

假设您将文件夹f_1从本地计算机复制到目标计算机m_1，并将/tmp目录复制为mf_1。

console:
[root@m_1 tmp] ls -a | grep mf_1 # => doesn't exist

irb:
options = {recursive: true}
Net::SCP.upload!(host, user, '~/f_1', '/tmp/mf_1', options)

console:
[root@m_1 tmp] ls -a | grep mf_1 # => folder exists, everything is fine

# but then, if you try to overwrite the existing folder...
irb:
Net::SCP.upload!(host, user, '~/f_1', '/tmp/mf_1', options)

console:
[root@m_1 tmp] ls -a | grep mf_1 # => folder exists
[root@m_1 tmp] cd mf_1
[root@m_1 m_f1] ls # => f_1 => /tmp/mf_1/f_1

因此，mf_1内部复制了/tmp/mf_1被覆盖的文件夹而不是/tmp/mf_1/f_1。

问题很简单，如何保持行为，使其保持一致并致电

Net::SCP.upload!(host, user, '~/f_1', '/tmp/mf_1', options)

连续两次，当文件夹存在且不是<？p>时，其行为方式相同

Answer 1

如果来源是dir，我最后添加了一个点这不是理想的，这是一个例子：

options = {recursive: true}

# target /tmp/mf_1 doesn't exist
Net::SCP.upload!(host, user, '~/f_1/.', '/tmp/mf_1', options)
# target /tmp/mf_1 has been created

# second time
Net::SCP.upload!(host, user, '~/f_1/.', '/tmp/mf_1', options)
# target /tmp/mf_1 has been overwritten
# not dir, but files in it, which is what we usually want

net :: scp复制/覆盖文件夹

1 个答案: