The built-in echo command is an older form of printf command. Bash provides it for compatibility with almost all the shells. echo does not use a format string format like printf command
It is used to display the text or variable on the output screen. The below example narrates the usage of echo command.
#!/bin/bash
### Script to echo command
echo Welcome to webnoidschools
Output
$ ./script1.sh
Welcome to webnoidschools