Provided by: whiptail_0.52.24-4ubuntu2_amd64 
NAME
whiptail - display dialog boxes from shell scripts
SYNOPSIS
whiptail [ --title title ] [ --backtitle backtitle ] [ --clear ] [ --default-item string ] [ --defaultno
] [ --fb ] [ --nocancel ] [ --yes-button text ] [ --no-button text ] [ --ok-button text ] [
--cancel-button text ] [ --noitem [ ] --output-fd fd ] [ --separate-output ] [ --scrolltext ] [ --topleft
] box-options
DESCRIPTION
whiptail is a program that will let you present a variety of questions or display messages using dialog
boxes from a shell script. Currently, these types of dialog boxes are implemented:
yes/no box, menu box, input box, message box, text box, info box, checklist box, radiolist box, gauge
box, and password box.
OPTIONS
--clear
The screen will be cleared to the screen attribute on exit. This doesn't work in an xterm (and
descendants) if alternate screen switching is enabled, because in that case slang writes to (and
clears) an alternate screen.
--defaultno
The dialog box will open with the cursor over the No button.
--default-item string
Set the default item in a menu box. Normally the first item in the box is the default.
--fb, --fullbuttons
Use full buttons. (By default, whiptail uses compact buttons).
--nocancel
The dialog box won't have a Cancel button.
--yes-button text
Set the text of the Yes button.
--no-button text
Set the text of the No button.
--ok-button text
Set the text of the Ok button.
--cancel-button text
Set the text of the Cancel button.
--noitem
The menu, checklist and radiolist widgets will display tags only, not the item strings. The menu
widget still needs some items specified, but checklist and radiolist expect only tag and status.
--notags
Don't display tags in the menu, checklist and radiolist widgets.
--separate-output
For checklist widgets, output result one line at a time, with no quoting. This facilitates
parsing by another program.
--output-fd fd
Direct output to the given file descriptor. Most whiptail scripts write to standard error, but
error messages may also be written there, depending on your script.
--title title
Specifies a title string to be displayed at the top of the dialog box.
--backtitle backtitle
Specifies a backtitle string to be displayed on the backdrop, at the top of the screen.
--scrolltext
Force the display of a vertical scrollbar.
--topleft
Put window in top-left corner.
-h, --help
Print a help message and exit.
-v, --version
Print version information and exit.
Box Options
--yesno text height width
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 be fit in one line, it
will be automatically divided into multiple lines at appropriate places. The text string may also
contain the sub-string "\n" or newline characters `\n' to control line breaking explicitly. 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.
--msgbox text height width
A message box is very similar to a yes/no box. The only difference 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
whiptail 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, whiptail will exit immediately
after displaying the message to the user. The screen is not cleared when whiptail 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 [init]
An input box is useful when you want to ask questions that require the user to input a string as
the answer. If init is supplied it is used to initialize the input string. When inputing the
string, the BACKSPACE key can be used to correct typing errors. If the input string is longer than
the width of the dialog box, the input field will be scrolled. On exit, the input string will be
printed on stderr.
--passwordbox text height width [init]
A password box is similar to an input box, except the text the user enters is not displayed. This
is useful when prompting for passwords or other sensitive information. Be aware that if anything
is passed in "init", it will be visible in the system's process table to casual snoopers. Also, it
is very confusing to the user to provide them with a default password they cannot see. For these
reasons, using "init" is highly discouraged.
--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 description 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. 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 whiptail exits, the tag of the chosen menu entry will be printed on
stderr.
--checklist text height width list-height [ tag item status ] ...
A checklist box is similar to a menu box in that there are multiple entries presented in the form
of a menu. You can select and deselect items using the SPACE key. The initial on/off state of
each entry is specified by status. On exit, a list of the tag strings of those entries that are
turned on will be printed on stderr.
--radiolist text height width list-height [ tag item status ] ...
A radiolist box is similar to a menu box. The only difference is that you can indicate which
entry is currently selected, by setting its status to on.
--gauge text height width percent
A gauge box displays a meter along the bottom of the box. The meter indicates a percentage. New
percentages are read from standard input, one integer per line. The meter is updated to reflect
each new percentage. If stdin is XXX, the first following line is a percentage and subsequent
lines up to another XXX are used for a new prompt. The gauge exits when EOF is reached on stdin.
NOTES
whiptail interprets arguments starting with a dash "-" as being arguments. To avoid this, and start some
text in, for example, a menubox item, with a dash, whiptail honours the getopt convention of accepting
the special argument "--" which means that all following arguments with dashes are to be treated verbatim
and not parsed as options.
If the specified height, width, or menu/list-height is zero, whiptail will increase the values as needed
in order to display all information.
DIAGNOSTICS
Exit status is 0 if whiptail is exited by pressing the Yes or OK button, and 1 if the No or Cancel button
is pressed. Otherwise, if errors occur inside whiptail or whiptail is exited by pressing the ESC key, the
exit status is 255.
AUTHOR
Based on the man page for dialog(1) by:
Savio Lam (lam836@cs.cuhk.hk) - version 0.3
Stuart Herbert (S.Herbert@sheffield.ac.uk) - patch for version 0.4
Modifications for whiptail by:
Enrique Zanardi (ezanard@debian.org)
Alastair McKinstry (mckinstry@debian.org)
Whiptail Version 0.52.5 31 January 2007 WHIPTAIL(1)