man pages section 4: File Formats
  • F
    • fbtab(4)– login-based device permissions
    • fd(4)– file descriptor files
    • flash_archive(4)– format of flash archive
    • format.dat(4)– disk drive configuration for the format command
    • forward(4)– addresses and aliases for sendmail
    • fs(4)– specify the default file system type for local or remote file systems
    • fspec(4)– format specification in text files
    • fstypes(4)– file that registers distributed file system packages
    • fs_ufs(4)– format of a ufs file system volume
    • ftpusers(4)– file listing users to be disallowed ftp login privileges