#compdef shred gshred

_arguments -s -S : \
  '(: * -)--help[display help information]' \
  '(: * -)--version[display version information]' \
  '(-f --force)'{-f,--force}'[bypass lack of write permissions]' \
  '(-n --iterations)'{-n+,--iterations=}'[specify number of overwrites]:overwrites [3]' \
  '--random-source=[get random bytes from specified file]:random source file:_files' \
  '(-s --size)'{-s+,--size=}'[shred specified number of bytes]:bytes' \
  '(--remove)-u[deallocate and remove file after overwriting]' \
  '(-u)--remove=-[like -u, or specify how to remove]::how to remove [wipesync]:((
    unlink\:"use standard unlink call"
    wipe\:"like unlink, but obfuscate bytes in name first"
    wipesync\:"like wipe, but sync each obfuscated byte to disk"
  ))' \
  '(-v --verbose)'{-v,--verbose}'[display progress]' \
  '(-x --exact)'{-x,--exact}'[do not round file sizes up to nearest block]' \
  '(-z --zero)'{-z,--zero}'[add final overwrite with zeros]' \
  '*: :_files'