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Replace all the matches of a Pattern from a String in R Programming - gsub() Function

Last Updated : 15 Jul, 2025
gsub() function in R Language is used to replace all the matches of a pattern from a string. If the pattern is not found the string will be returned as it is.
Syntax: gsub(pattern, replacement, string, ignore.case=TRUE/FALSE) Parameters: pattern: string to be matched replacement: string for replacement string: String or String vector ignore.case: Boolean value for case-sensitive replacement
Example 1: Output: 
[1] "Goodsforgoods"
[1] "GeeksforBooks"
[1] "BooksforBooks"
Example 2: Output: 
[1] "R Tutorial" "Java example" "Go-Lang Tutorial"
[1] "R Tutorial" "Java Tutorial" "Go-Lang Tutorial"
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