lsof VS Alcove

Overall verdict

• lsof (List Open Files) is a mature, battle-tested Unix/Linux utility that reliably reveals which files, sockets, and resources are opened by processes, making it an indispensable diagnostic tool for system administrators and developers.

Why this product is good

• Provides comprehensive visibility into open files, network sockets, pipes, and devices tied to running processes
• Extremely useful for troubleshooting 'device busy' errors, port conflicts, and locating processes holding onto deleted files
• Highly portable across many Unix-like systems including FreeBSD, Linux, macOS, and Solaris
• Long history of stable, well-maintained releases with extensive documentation and community support
• Powerful filtering options let you query by user, process, port, file, or network connection

Recommended for

• System administrators diagnosing resource and file-locking issues
• Developers debugging network connections and socket usage
• Security professionals investigating suspicious process activity and open network ports
• Anyone needing to identify which process is using a specific file, directory, or port before unmounting or killing