When writing shell scripts, ensuring that certain variables are set and not empty is crucial. One handy feature in Bash for this purpose is the :? parameter expansion. The :? syntax is a form of parameter expansion in Bash that allows you to check if...
Bash scripts often require the ability to process both positional and named (or optional) arguments. Understanding how to handle these types of arguments can greatly enhance the flexibility and functionality of your scripts. Bash provides several spe...
In Unix-like operating systems, shell scripts can be called from within other shell scripts, either to run in the same process or in a different process. Let's explore both approaches. Let us create a bash script named task.sh with the content below ...
For debugging purposes, we had to profile a Python program using cProfile which will create a .prof file with the profiled data. Also, we wanted to create unique file names for each run using a bash shell. We had a couple of options: Use Unix epoch ...