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      dialog - инициирует окно диалога для shell скриптов


      dialog --clear
      dialog --create-rc file
      dialog  [ --title title ] [ --clear ] [ --hline line ] [ --hfile file ]


      Dialog - программа, позволяющая Вам использовать различные варианты диалоговых форм в shell скриптах. Доступны следующие варианты диалоговых форм:
      Форма да/нет, меню, форма ввода, сообщение, текст, информация, форма выбора, программное окно, ftree and tree boxes.


             Очистка окна.
      --create-rc file
             Since  dialog  supports run-time configuration, this can be used
             to dump a sample configuration file to  the  file  specified  by
      --title title
             Строка заголовка формы.
      --hline line
             Specifies a line string to be displayed at  the  bottom  of  the
             dialog box.
      --hfile file
             Specifies a file to be displayed by pressing ? or F1.
      Опции вида диалоговой формы:
      --yesno text height width [ yes | no ]
             A yes/no dialog box of size height rows by width columns will be
             displayed. The string specified by text is displayed inside  the
             dialog  box.  If  this string is too long to fit in one line, it
             will be automatically divided into multiple lines at the  appro-
             priate  points.  The text string may also contain the sub-string
             "\n" or newline characters `\n' to control line breaking explic-
             itly.   This  dialog  box  is  useful  for asking questions that
             require the user to answer either yes or no.  The dialog box has
             a  Yes  button  and  a  No  button, in which the user can switch
             between by pressing the TAB key.  A Yes button  is  selected  by
             default unless no is specified.
      --msgbox text height width
             A message box is very similar to a yes/no box.  The only differ-
             ence between a message box and a yes/no box is  that  a  message
             box  has only a single OK button. You can use this dialog box to
             display any message you like.  After reading  the  message,  the
             user  can  press  the ENTER key so that dialog will exit and the
             calling shell script can continue its operation.
      --infobox text height width
             An info box is basically a message box.  However, in this  case,
             dialog will exit immediately after displaying the message to the
             user. The screen is not cleared when dialog exits, so  that  the
             message will remain on the screen until the calling shell script
             clears it later. This is useful when you want to inform the user
             that  some operations are carrying on that may require some time
             to finish.
      --inputbox text height width
             An input box is useful when  you  want  to  ask  questions  that
             require  the user to input a string as the answer. When inputing
             the string, the BACKSPACE key can  be  used  to  correct  typing
             errors.  If the input string is longer than can be fitted in the
             dialog box, the input field will be scrolled. On exit, the input
             string will be printed on stderr.
      --textbox file height width
             A  text  box  lets  you display the contents of a text file in a
             dialog box. It is like a simple text file viewer. The  user  can
             move  through  the  file  by  using  the  UP/DOWN, PGUP/PGDN and
             HOME/END keys available on most keyboards.  If the lines are too
             long to be displayed in the box, the LEFT/RIGHT keys can be used
             to scroll the text region horizontally.  For  more  convenience,
             forward and backward searching functions are also provided.
      --menu text height width menu-height [ tag item ] ...
             As  its  name  suggests,  a menu box is a dialog box that can be
             used to present a list of choices in the form of a menu for  the
             user  to choose. Each menu entry consists of a tag string and an
             item string. The tag gives the entry a name  to  distinguish  it
             from the other entries in the menu. The item is a short descrip-
             tion of the option that the entry represents. The user can  move
             between the menu entries by pressing the UP/DOWN keys, the first
             letter of the tag as a hot-key, or the number  keys  1-9.  There
             are  menu-height  entries displayed in the menu at one time, but
             the menu will be scrolled if there are more entries  than  that.
             When  dialog  exits,  the  tag  of the chosen menu entry will be
             printed on stderr.
      --prgbox command height width
             A program box lets you display output of command in dialog  box.
      --checklist text height width list-height [ tag item status ] ...
             A  checklist box is similar to a menu box in that there are mul-
             tiple entries presented in the form of a menu. Instead of choos-
             ing  one entry among the entries, each entry can be turned on or
             off by the user. The initial on/off state of each entry is spec-
             ified  by  status.   On exit, a list of the tag strings of those
             entries that are turned on will be printed on stderr.
      --ftree file FS text height width menu-height
             ftree box is a dialog box showing the tree described by the data
             from  the  file  file.   The  data  in the file should look like
             find(1)  output. For the find output,  the  field  separator  FS
             will  be '/'. If height and width are positive numbers, they set
             the absolute size of the whole ftree box. If  height  and  width
             are negative numbers, the size of the ftree box will be selected
             automatically.  menu-height sets the height of the tree  subwin-
             dow  inside the ftree box and must be set.  text is shown inside
             the ftree box above the tree subwindow and can  contain  newline
             characters  '\n' to split lines. One can navigate in the tree by
             pressing UP/DOWN or  '+'/'-',  PG_UP/PG_DOWN  or  'b'/SPACE  and
             HOME/END or 'g'/'G'.  A leaf of the tree is selected by pressing
             TAB or  LEFT/RIGHT  the  OK  button  and  pressing  ENTER.   The
             selected  leaf  (to  be more exact, the full path to it from the
             root of the tree) is printed to  stderr.   If  Cancel  and  then
             ENTER  is  pressed, nothing is printed to stderr.  file may con-
             tain data like find(1) output, as well as  like  the  output  of
             find(1)  with  -d  option.  Some  of  the transient paths to the
             leaves of the tree may be absent. Such data  is  corrected  when
             fed from file.
      --tree FS text height width menu-height [ item ] ...
             tree box is like ftree box with some exceptions. First, the data
             is not entered from a file, but from the command  line  as  item
             item  ...  Second, the data thus entered is not corrected in any
             way.  Thus, the data like the output of find(1) with  -d  option
             will look incorrectly.


      1.  Create a sample configuration file by typing:
                "dialog --create-rc <file>"
      2.  At start, dialog determines the settings to use as follows:
          a)  if  environment  variable DIALOGRC is set, its value determines
              the name of the configuration file.
          b)  if the file in (a) can't be found, use the file $HOME/.dialogrc
              as the configuration file.
          c)  if the file in (b) can't be found, use compiled in defaults.
      3.  Edit  the  sample configuration file and copy it to some place that
          dialog can find, as stated in step 2 above.


      DIALOGRC       Define this variable if you want to specify the name  of
                     the configuration file to use.


      $HOME/.dialogrc     default configuration file


      Exit  status is 0 if dialog is exited by pressing the Yes or OK button,
      and 1 if the No or Cancel button is pressed. Otherwise, if errors occur
      inside  dialog  or  dialog  is exited by pressing the ESC key, the exit
      status is -1.




      Text files containing tab characters may cause problems with text  box.
      Tab  characters  in  text files must first be expanded to spaces before
      being displayed by text box.
      Screen update is too slow.
      The ftree and tree boxes do not allow the tree to be moved to the  left
      or  to  the  right. Thus, if there are many levels of data, some of the
      leaves can be rendered invisible. A standard display with 80 characters
      allows  for  17 levels to be visible. Deeper levels are invisible. How-
      ever, the navigation in the tree and selection of leaves do work.


      Savio Lam (lam836@cs.cuhk.hk)
      Changes by Anatoly A. Orehovsky (tolik@mpeks.tomsk.su) (ftree and  tree

                               2 October 1998                       DIALOG(1)