System Command with Space in R

Question

I run a system command with spaces in directory name as followed:

command=paste(shQuote(\"java -jar C:/DIR A/DF.jar -t\"), t1, t2)

I tried

Answer 1

Here is the solution

command=paste('java -jar "C:/DIR A/DF.jar" -t', t1, t2)

use " only for the dir name and the outside with '