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Full Discussion: Bash Script - Whiptail Menu Help!
Top Forums Shell Programming and Scripting Bash Script - Whiptail Menu Help! Post 302908987 by Scrutinizer on Saturday 12th of July 2014 08:03:22 PM
Old 07-12-2014
You need to find out how the second whiptail writes its output. Somehow the output of the second whiptail command needs to be fed into the while-read loop. There is not input into that loop here. Perhaps through a pipe symbol (if that command outputs on stdout)?

--
A short look at the man page of whiptail and the menu option, says it's outputting on stderr. But it also needs stdout to go to the terminal, so a pipe cannot be used)

===EDIT===
(corrected previous sentence (thanks Don). I originally said "background" there, which is wrong I meant "subshell". But also that is not really relevant. What matters is that pipe cannot be used like that, because the command needs stdout to go directly to the terminal..)

So try something like:

Code:
.....
whiptail --title Networking --menu "Make your choice" 16 78 5 \
  "1)" "Display info" 2>somefile
CHOICE=$(cat somefile)
case $CHOICE in
  "1)") ./displayinfo.sh
esac

Last edited by Scrutinizer; 07-13-2014 at 04:39 AM.. Reason: Corrected background to subshell. Thanks Don...
 

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grub-render-label

GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME

       grub-render-label - generate a .disk_label for Apple Macs.

SYNOPSIS

       grub-render-label [OPTION...] [OPTIONS]

DESCRIPTION

       Render Apple .disk_label.

       -b, --bgcolor=COLOR
              use COLOR for background

       -c, --color=COLOR
              use COLOR for text

       -f, --font=FILE
              use FILE as font (PF2).

       -i, --input=FILE
              read text from FILE.

       -o, --output=FILE
              set output filename. Default is STDOUT

       -t, --text=STRING
              set the label to render

       -v, --verbose
              print verbose messages.

       -?, --help
              give this help list

       --usage
              give a short usage message

       -V, --version
              print program version

       Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

REPORTING BUGS

       Report bugs to <bug-grub@gnu.org>.

SEE ALSO

       The  full  documentation  for grub-render-label is maintained as a Texinfo manual.  If the info and grub-render-label programs are properly
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              info grub-render-label

       should give you access to the complete manual.

grub-render-label (GRUB) 2.02-2ubuntu8.3                             July 2018                                                GRUB-RENDER-LABEL(1)
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