stupid question with DIALOG

frenchn00b · 11-21-2009, 01:24 PM

Hello

Code:

dialog  --clear --title "Question"  --inputbox  "How many pages you would like to retrieve starting from $REC?" 16 51   ;  ret=$?  ; clear ; echo $ret

whatever I enter in the inputbox, the pc displyas

Code:

what's wrong?

gnashley · 11-22-2009, 03:05 AM

You have to re-direct the output (2>temp-file)

Code:

#!/bin/sh

dialog  --clear --title "Question"  \
--inputbox  "How many pages you would like to retrieve starting from $REC?" 16 51 2>tmp.file

ret=$? 
RESULT=$(cat tmp.file)
rm -f tmp.file
case $ret in
  0)
    echo "Input string is '$RESULT'";;
  1)
    echo "Cancel pressed.";;
  255)
    echo "Box closed.";;
esac

There may be ways of getting around this using --stdout option or by filling a variable with the output[ RESULT=$(dialog commands) ], but using the temp file is usually suggested.

frenchn00b · 11-22-2009, 03:27 AM

Code:

ret=$?.
RESULT=$(cat tmp.file)

no really. This is kind of surprising that one has to use hte disk as default, for linux. Well as default, as you say one can find tricks.
But the one that coded this ... well pitty that we cannot change this, it si too late. once it is coded under linux, one cannot change the program otherwise no applications would work anymore. just e.g. debian insatller is based on dialog

I found this:

Quote:

# POSIX
foo=$(dialog --inputbox "text goes here" 8 40 2>&1 >/dev/tty)
echo "The user typed '$foo'"

and if I do this it is not working acutally.. pff not easy:

Quote:

dialog --title " qeustions" --yesno " Ready y/n" 10 30 2>tmp.file

RESULT=$(cat tmp.file)

echo $RESULT