The most arcane shell commands and options are explained with plenty of examples. “Here” documents, a way to feed input to a script or command within the script itself, are explained thoroughly.

Another special variable that you might have encountered is the status variable, $?. In a script, this contains the return value of the most recently executed (external) command. This is where you ...

Dive into the world of Linux shell scripting with this hands-on guide. If you’re comfortable using the command line on Unix or Linux but haven’t fully explored Bash, this book is for you.