In Linux, all tasks from execution of services to loading and unloading of modules are carried out by programs and all programs need to be executed. You use the commands to access all the basic features of kernel. Shell scripting is a way to automate such tasks, and bash is one of the language, that has capabilities enough to be called as scripting as well as a language that can be used for programming on the POSIX platform, for small tasks.
Use of echo command:
You can use echo command with various options. Some useful options are mentioned in the following example. When you use ‘echo’ command without any option then a newline is added by default. ‘-n’ option is used to print any text without new line and ‘-e’ option is used to remove backslash characters from the output. Create a new bash file with a name, ‘echo_command.sh’ and add the following script. Bash scripting echo command
#!/bin/bash
echo "Printing text with newline"
echo -n "Printing text without newline"
echo -e "\nRemoving \t backslash \t characters\n"
Run the file with bash command.
$ bash echo_command.sh
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