Understanding Parent and Child Shells in Bash Scripts A new article on Dev.to explores the concept of parent shells and child shells in Bash scripting, highlighting issues such as variable updates and process IDs not aligning. The author uses $BASHPID to visualize process relationships and provides a script demonstrating subshell behavior. Source: https://dev.to/tommykw/learning-parent-and-child-shells-in-bash-scripts-1ijj