# Replacing some characters in a string with another character?

I have a string like <!-- language: lang-none --> AxxBCyyyDEFzzLMN I want to replace all x and y and z with _ so that the output is A_BC_DEF_LMN How to do that? I know a series of echo "$string" | tr 'x' '_' | tr 'y' '_' will work, but I want to do that in one go, without using pipes. EDIT: The following worked echo "$string" | tr '[xyz]' '_'

## 1 Expert Answer

By:

Benjamin M. answered • 02/04/21

Tutor
New to Wyzant

BS Computer Science, Linux classes and experience

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