by Sai gowtham

How to convert a string into a lowercase in Bash

We can use POSIX standard tr '[:upper:]' '[:lower:]' command to convert a string into a lowercase in bash.

Here is an example that converts the string WE LOVE CODING to lowercase.

p="WE LOVE CODING"

echo "$p" | tr '[:upper:]' '[:lower:]'

Output:

we love coding

Similarly, you can also do it like this.

p="WE LOVE CODING"

echo "$p" | awk '{print tolower($0)}'

Top Udemy Courses

JavaScript - The Complete Guide 2020 (Beginner + Advanced)
JavaScript - The Complete Guide 2020 (Beginner + Advanced)
45,614 students enrolled
52 hours of video content
View Course
React - The Complete Guide (incl Hooks, React Router, Redux)
React - The Complete Guide (incl Hooks, React Router, Redux)
284,472 students enrolled
40 hours of video content
View Course
Vue - The Complete Guide (w/ Router, Vuex, Composition API)
Vue - The Complete Guide (w/ Router, Vuex, Composition API)
130,921 students enrolled
48.5 hours of video content
View Course