Filter a vector of strings based on string matching

Question

I have the following vector:

X <- c(\"mama.log\", \"papa.log\", \"mimo.png\", \"mentor.log\")

How do I retrieve another vector that only

Answer 1

Try this:

grep("^m.*[.]log$", X, value = TRUE)
## [1] "mama.log"   "mentor.log"

A variation of this is to use a glob rather than a regular expression:

grep(glob2rx("m*.log"), X, value = TRUE)
## [1] "mama.log"   "mentor.log"