_pw

#compdef pw

_pw() {
  local tmp common_args user_cmn_args
  common_args=(
  "-V[Set the alternate location for /etc]:Alternate etc dir:_files -/"
  '-C[Specify a different configuration file]:Configuration file:_files -g "*.conf"'
  '-q[Suppress rrror messages]'
  )
  user_cmn_args=(
  '-n[Specify the name]:name:'
  '-u[Specify the uid]:uid:'
  )
  _arguments -s  \
  '*::command:->commands' && ret=0
  while [[ -n "$state" ]]; do
    tmp="$state"
    state=
    case "$tmp" in
      commands)
      if (( CURRENT == 1 )); then
	state=subcommands
      else
	case "$words[1]" in 
	  useradd)
	  ;;
	  userdel)
	  _arguments \
	  $common_args \
	  $user_cmn_args \
	  "-r[Remove the user's home directory]" \
	  "-Y[allow automatic updating of NIS database]" \
	  ":Name or uid:_users" 
	  ;;
	  usermod)
	  local shells
	  if [[ -r /etc/shells ]]; then
	    shells=( ${${(f)"$(</etc/shells)"}:#\#*} )
	  else
	    shells=( ${(M)commands:#*/(|[abckz]|tc|ba)sh} )
	  fi

	  _arguments \
	  $common_args \
	  "-Y[allow automatic updating of NIS database]" \
	  '-n[Specify the name]:name:' \
	  '-u[Specify the uid]:uid:' \
	  '-c[Modify the comment]:comment:' \
	  "-d[Modify the home directory location]:home dir:_directories -W /" \
	  "-e[Modify the expiration date]:date:" \
	  "-p[Modify the password expiration date]:date:" \
	  "-g[Modify the main group]:group:_groups" \
	  "-G[Modify supplementary groups]:groups:_groups -S," \
	  "-l[Modify the user name]:name:" \
	  "-m[Attempt to create the user's directory]" \
	  "-M[Create the user’s home directory with the specified mode]:mode:" \
	  "-k[Skeleton for the home directory creation]:skeleton dir:_directories -W /" \
	  "-w[sets the default method used to set passwords]:methods:((no\:disable\ login yes\:force\ the\ password\ to\ be\ the\ account\ name none\:force\ a\ blank\ password random\:generate\ a\ random\ password))" \
	  "-s[specify the user shell]:shell:( $shells /sbin/nologin )" \
	  "-L[Set the login class]:class:" \
	  "-N[output the result of the operation without updating the user databases]" \
	  "-P[outputs the account details in a more human readable form]" \
	  ":Name or uid:_users"
	  ;;
	  usershow)
	  _arguments \
	  $common_args \
	  '-n[Specify the name]:name:' \
	  '-u[Specify the uid]:uid:' \
	  "-F[forces pw to print the details of an account]" \
	  "-P[outputs the account details in a more human readable form]" \
	  "-7[show account details in v7 format]" \
	  "-a[lists all users currently on file]" \
	  ":Name|uid:_users"

	  ;;
	  (user|group)next)
	  	return 0
	  ;;
	  groupadd)
	  _arguments \
	  $common_args \
	  $user_cmn_args
	  ;;
	  groupdel)
	  _arguments \
	  $common_args \
	  $user_cmn_args
	  ;;
	  groupmod)
	  _arguments \
	  $common_args \
	  $user_cmn_args
	  ;;
	  groupshow)
	  _arguments \
	  $common_args \
	  $user_cmn_args
	  ;;
	  lock|unlock)
	  _arguments \
	  $common_args \
	  ":User to $words[1]:_users"
	  ;;
	  *)
	  _message 'command not found'
	  ;;
	esac
      fi
      ;;
      subcommands)
      subcmds=(
      'useradd[Add a user]'
      'userdel[Delete a user]'
      'usermod[Modify a user]'
      'usershow[Show informations about a user]'
      'usernext'
      'groupdadd[Add a group]'
      'groupdel[Delete a group]'
      'groupmod[Modify a group]'
      'groupshow[Show information about a group]'
      'groupnext'
      'lock[lock a user]'
      'unlock[unlock a user]'
      )
      _values "pw command" $subcmds && return 0
      ;;
    esac
  done
}

_pw "$@"