Single vs Double Quotes in Command Line and R

Zhenguo Zhang's Blog /2026/04/26/single-vs-double-quotes-in-command-line-and-r/ -When feeding a program with command line arguments, single quotes and double quotes make a significant difference. The Shell Rule Single quotes (') do not allow escaping any characters; the contents are treated literally. Double quotes ("), however, allow for character escaping and variable expansion. You can ...