Searching for completely empty files (zero-byte files) is possible and commonly supported. These files exist physically on storage but contain absolutely no data – their file size is precisely 0 bytes. This differs from files that appear empty but may contain hidden characters like spaces or line breaks; true empty files have no content whatsoever. File management commands and tools include specific parameters to identify these files.

For instance, on Linux/macOS terminals, the find command with -size 0 locates them (e.g., find /path/to/search -type f -size 0). Similarly, PowerShell on Windows uses Get-ChildItem -File | Where-Object {$_.Length -eq 0}. This capability is vital for system administrators tidying temporary directories or developers ensuring test artifacts are correctly generated.

A key limitation is that some operating systems or applications might create placeholder files with metadata, making them technically non-empty despite having no user-visible content. Additionally, accidentally deleting system-generated zero-byte files can occasionally cause issues. While useful for cleanup, relying solely on file size may miss "logically empty" files containing only insignificant characters. The feature remains a simple, effective tool for specific housekeeping tasks.