ORIGINAL WORKED REFERENCE

The three regular text files contain 2, 3 and 0 newline-terminated lines, totaling 5. wc counts newline characters, so an unterminated last line needs a separate policy. The fixtures intentionally end their nonempty lines with newlines.

CRITICAL CONDITION
Source files remain unchanged, paths with spaces work and failures return a nonzero exit status.

LIMITS
The script is scoped to local top-level text fixtures and newline-terminated lines; it is not a general backup or system administration tool.

This reference is not a learner submission or proof of provider-course completion. See material-verification.json in the production package for actual preparation checks.
