[英]How to create a tar.gz file in R?
I would create a tar.gz file from R. But the tar function doesn't work me. 我会从R创建一个tar.gz文件但是tar函数对我不起作用。 This is my example code. 这是我的示例代码。
writeLines('aaaa', 'tmp.txt')
tar('tmp.tar.gz', 'tmp.txt', compression = 'gzip')
This code creates a tmp.tar.gz, but tmp.txt doesn't include in the gz file. 此代码创建tmp.tar.gz,但tmp.txt不包含在gz文件中。
Are there any mistakes in my code? 我的代码中有错误吗?
Thanks for any suggestions. 谢谢你的任何建议。
I run this code in windows and linux: 我在windows和linux中运行此代码:
#Windows platform
sessionInfo()
R version 3.1.0 (2014-04-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_Australia.1252 LC_CTYPE=English_Australia.1252
[3] LC_MONETARY=English_Australia.1252 LC_NUMERIC=C
[5] LC_TIME=English_Australia.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] tools_3.1.0
#Linux platform
sessionInfo()
R version 3.1.0 (2014-04-10)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=C LC_COLLATE=C
[5] LC_MONETARY=C LC_MESSAGES=C LC_PAPER=C LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=C LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] weaana_0.1.0.3874 abind_1.4-0 reshape2_1.4 ncdf4cf_0.1.0.3698 ncdf4_1.10
[6] stringr_0.6.2 My_0.1.0.4086
loaded via a namespace (and not attached):
[1] Rcpp_0.11.1 plyr_1.8.1 tools_3.1.0
I guess you do not have set the "tar"
environmental variable. 我猜你没有设置"tar"
环境变量。 The default argument of tar()
called tar
is set by a call to Sys.getenv("tar")
. 调用tar
的tar()
的默认参数是通过调用Sys.getenv("tar")
。 If it is an empty string, then R's internal tar
is used (it doesn't work on my system either). 如果它是一个空字符串,则使用R的内部tar
(它在我的系统上也不起作用)。
So, you may either Sys.setenv
the "tar"
variable, or provide the name of external tar
command/path manually: 因此,您可以使用Sys.setenv
"tar"
变量,也可以手动提供外部tar
命令/路径的名称:
tar('tmp.tar.gz', 'tmp.txt', compression = 'gzip', tar="tar")
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