search for: strings_003f

Hi folks, Can anyone enlighten me as to why I get the following when I search for ".csv" at the end of a string? > grep("\.csv$","Blah.csv",value=TRUE) [1] "Blah.csv" Warning messages: 1: '\.' is an unrecognized escape in a character string 2: unrecognized escape removed from "[\.]csv$" R reference for regular expressions says

Hi guys, I've been struggling to find a solution to the following issue: I need to change strings in .ini files that are given in input to a program whose output is processed by R. The strings to be changed looks like: "instance = /home/TSPFiles/TSPLIB/berlin52.tsp" I normally use Sed for this kind of things. So, inside R I'd like to write something like: command <-