英文:
Downloading files using wildcards with scp in Ruby
问题
以下是翻译好的部分：
我成功地使用下面的代码从服务器下载了“log_list”中的日志文件。我使用了net/ssh和net/scp：（https://github.com/net-ssh/net-scp）
log_list = ["ini.log", "syslog.log", "network.log"]
fetch(log_list)
def fetch(fetchlogs)
root_cli do |ssh|
fetchlogs.each do |testlog|
source = "/var/log/logfiles/#{testlog}"
destination = "/home/Documents/testdir/"
ssh.scp.download!(source, destination)
rescue Exception => e
info "#{fetch} is not a valid file ==++==++"
end
end
end
现在“log_list”中的日志文件是旋转日志，并且可以有多个文件，如“ini.log，ini.log.001，ini.log.002，...”，我想下载所有文件，我尝试使用*：
log_list = ["ini.log*", "syslog.log*", "network.log*"]
通常我认为这应该起作用，但结果是没有文件，并且出现异常：
ini.log* is not a valid file ==++==++
syslog.log* is not a valid file ==++==++
network.log* is not a valid file ==++==++
我还尝试直接在源文件中添加*，而不是在log_list中：
source = "/var/log/logfiles/#{testlog}*"
pp " source #{source}"
ssh.scp.download!(source, "/home/Documents/testdir/")
输出：
source ini.log*
source syslog.log*
source network.log*
但文件没有被下载，出现相同的错误：
ini.log* is not a valid file ==++==++
syslog.log* is not a valid file ==++==++
network.log* is not a valid file ==++==++
尽管文件存在，有人知道吗，*字符是否被转义了？
英文:
I am successfully downloading the log files in "log_list" from the server to destination using the code below.
I am using net/ssh / net/scp : (https://github.com/net-ssh/net-scp)
log_list = ["ini.log", "syslog.log", "network.log"]
fetch(log_list)
def fetch(fetchlogs)
root_cli do |ssh|
fetchlogs.each do |testlog|
source= "/var/log/logfiles/#{testlog}"
destination = "/home/Documents/testdir/"
ssh.scp.download!(source,destination)
rescue Exception => e
info "#{fetch} is not a valid file ==++==++ "
end
end
end
Now the log files in "log_list" are rotating logs and can have multiple files like "ini.log ,ini.log.001, ini.log.002, ..." and i want to download all what i tried is with *:
log_list = ["ini.log*", "syslog.log*", "network.log*"]
which normally i thought should work but this is resulting in no file with exception.
ini.log* is not a valid file ==++==++
syslog.log* is not a valid file ==++==++
network.log* is not a valid file ==++==++
I also tried with adding * directly to source instead in log_list
source = "/var/log/logfiles/#{testlog}*"
pp " source #{source}"
ssh.scp.download!(source,"/home/Documents/testdir/")
output:
source ini.log*
source syslog.log*
source network.log*
but files are not being downloaded with same error
ini.log* is not a valid file ==++==++
syslog.log* is not a valid file ==++==++
network.log* is not a valid file ==++==++
Although files exits, Does somebody have any idea, is * character is being escaped ? !!
答案1
得分: 1
你可以使用scp.session.exec!与ls来根据通配符选择收集文件列表，然后逐个下载每个源文件。
大致如下：
log_list = ["ini.log*", "syslog.log*", "network.log*"]
...
fetchlogs.each do |testlog|
source = "/var/log/logfiles/#{testlog}"
destination = "/home/Documents/testdir/"
# 使用ls获取通配符文件列表
source_files = ssh.scp.session.exec!("ls #{source}").split
source_files.each { |file|
ssh.scp.download!(file, destination)
}
...
end
希望这有帮助！
英文:
You can use scp.session.exec! with ls to gather a list of files based on your wildcard choice, and then download each source file one by one.
Something along these lines:
log_list = ["ini.log*", "syslog.log*", "network.log*"]
...
fetchlogs.each do |testlog|
source = "/var/log/logfiles/#{testlog}"
destination = "/home/Documents/testdir/"
# Fetch list of wildcard files using ls
source_files = ssh.scp.session.exec!("ls #{source}").split
source_files.each { |file|
ssh.scp.download!(file, destination)
}
...
end
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论