用 R system() 解压 rar [英] unpacking rar with R system()

问题描述

好吧，这个任务似乎真的很容易做.但是我花了几个小时没有任何结果.

OK this task seems to be really easy to do. However I spent a couple of hours without any results.

用户拥有:

• 7z
• 窗户
• R

用户应输入:

• 7z 路径(z7path)
• 文件名

系统应将 rar 解压到项目的根目录中

System should unpack rar into the project's root

我试过了:

cmd = "C:\\Program Files (x86)\\7-Zip\\7z e D:/20140601.rar"
system(shQuote(cmd))

然后……什么也没发生.请不要建议设置 PATH，它没有帮助，没有它应该可以工作.

And..nothing happens. Please don't advise to set up PATH, it doesn't help, and this should work without it.

推荐答案

好的，我终于明白了.

1. 使用外壳
2. 对周围路径使用 shQuote

3. 使用右键

1. Use shell
2. Use shQuote for surrounding path

3. Use right keys

z7path = shQuote('C:\\Program Files (x86)\\7-Zip\\7z')
file = paste(getwd(), '/101-01.rar', sep = '')
cmd = paste(z7path, ' e ', file, ' -y -o', getwd(), '/', sep='')
shell(cmd)

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