What's the difference between relative and absolute paths in bash, and how does it affect 'No such file or directory' errors?

Relative paths are defined relative to the current working directory of the script. Absolute paths start from the root directory (`/`). Using relative paths can lead to 'No such file or directory' errors if the script is run from a different directory than expected. Absolute paths are more reliable because they always point to the same location regardless of the current working directory. To avoid these errors, use absolute paths or carefully manage the current working directory using `cd` within the script.