set e

Explore error handling in Bash scripting through the `trap '...' ERR` and `set -E` commands in this blog post. Learn how to manage errors on a granular level by trapping errors for specific commands, enhancing script reliability, illustrated with practical examples and executable scripts.

The article explains the function `(( i++ ))` in Bash, particularly with `i` initialized to 0 and under `set -e`. When `i=0`, `(( i++ ))` returns 1, considered an "error" due to returning "false", causing scripts with `set -e` to exit unexpectedly. Examples and strategies are provided to handle such issues effectively in Bash scripts.

The article discusses using `&&` for command chaining and `set -e` for error handling in Linux Bash scripts, highlighting the importance of both in managing dependencies and enhancing script reliability. It shows through examples how these tools ensure only successful commands execute sequentially, preventing scripts from running faulty commands, thus increasing script maintainability and reliability.