Unix shell programming examples with a calculator functionality. Examples signed by tags: Example_1 -- simple calc with "expr" evaluation. Example_2 -- shell spec. symbols escaping and formating input ...

A Bash script is a file containing a series of commands that are executed in sequence by the Bash shell (Bourne Again SHell), a widely used command-line interpreter on Unix-like operating systems, ...

In Bash shell scripting, functions are ways to group the set of instructions together to get a specific outcome. You can think of functions as a mini script. Functions are also called procedures and ...