Linux File Viewing Commands Explained: touch, cat, less, head, and tail

Linux offers several essential commands for creating and viewing files, each suited to different use cases. The touch command creates empty files or updates file timestamps, while cat displays or concatenates file contents but is not recommended for large files. For large files, less allows efficient page-by-page navigation without loading the entire file into memory. The head and tail commands print the first or last lines of a file respectively, defaulting to 10 lines each. Notably, tail's -f and -F flags enable real-time log file monitoring, with -F being preferred as it handles log rotation automatically.