tr (Translate) #

Lesson Content #

The tr (translate) command allows you to translate a set of characters into another set of characters. Let’s try an example of translating all lower case characters to uppercase characters.

$ tr a-z A-Z
hello
HELLO

As you can see we made the ranges of a-z into A-Z and all text we type that is lowercase gets uppercased.

Exercise #

Try the following command what happens?

$ tr -d ello
hello

Quiz Question #

What command is used to translate characters?

Quiz Answer #

tr