need to write a file with a varierty of paramters. The command looks like
需要编写一个包含各种参数的文件。该命令看起来像
awk 'match($0, /^\[[0-9]*\]/) {print substr($0, RSTART + 1, RLENGTH - 2)}' testdata > out
when I then try to paste it in R
当我然后尝试将其粘贴在R中
paste("awk 'match($0, /^\[[0-9]*\]/) {print substr($0, RSTART + 1, RLENGTH - 2)}'")
Error: '\[' is an unrecognized escape in character string starting ""awk 'match($0, /^\[
can somebody tell me how I get around that error and paste that string correctly in R?
谁能告诉我如何绕过该错误并在R中正确粘贴该字符串?
1 个解决方案
#1
You need to escape the \ character, as \[is not a valid escape sequence to \\[. A similar argument holds for \].
你需要转义\字符,因为\ [不是一个有效的转义序列到\\ [。类似的论点适用于\]。
The correct call is thus
因此,正确的呼叫
paste("awk 'match($0, /^\\[[0-9]*\\]/) {print substr($0, RSTART + 1, RLENGTH - 2)}'")
#1
You need to escape the \ character, as \[is not a valid escape sequence to \\[. A similar argument holds for \].
你需要转义\字符,因为\ [不是一个有效的转义序列到\\ [。类似的论点适用于\]。
The correct call is thus
因此,正确的呼叫
paste("awk 'match($0, /^\\[[0-9]*\\]/) {print substr($0, RSTART + 1, RLENGTH - 2)}'")