grepl in R: How to Use R grepl() Function - R-Lang -B n : Prints searched line and n line before the result. {0,5}patternA). Grep OR – Grep AND – Grep NOT – Match Multiple Patterns 4 сент. -E : Treats pattern as an extended regular expression (ERE) -w : Match whole word -o : Print only the matched parts of a matching line, with each such part on a separate output line. [R] grep for multiple pattern? R: Pattern Matching and Replacement Then you can use grepl: grepl (pattern, x) [1] TRUE … 12 Grep Command Examples. replacement. grep ignore blank space R grep: Match one string against multiple patterns … R: Pattern Matching and Replacement Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. r - grep using a character vector with multiple patterns