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by Katja and Guido Socher <katja(at)linuxfocusorg, %20guido(at)linuxfocus.org> About the authors: Katja ��LinuxFocus�ĵ¹��༭. ��ϲ��Tux, ��Ӱ, ��Ӱ�ʹ���. ������������ҳ. Guido ��һ������linux������. ��ϲ��Linux��Ϊ�����ɳ�ʵ�Ϳ��ŵ��������Ƶ�. ���������dz�֮Ϊ"����Դ����"��ԭ��. ������������ҳ:linuxfocus.org/~guido. Ŀ¼: ���� ʹ�� (X)dialog... �������ι����� �����ij��� �����ij���More applications �ܽ� ���������� Xdialog �� dialog? �ο����� ����ƪ���·�������

(X)dialog: Talking shells

ժҪ:

Xdialog��dialog��������ʹ����shell�ű��߱�ͼ���û�����(GUI)�Ĺ���.
����Ҫ�߱�һЩshell����֪ʶ���ܿ�����ƪ����. �����Կ����ǵ�Shell Programming��ƪ������ѧһЩshell���̵Ļ���֪ʶ.

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ʹ�� (X)dialog...

bash
Xdialog --yesno "Do you want to learn more about Xdialog?" 0 0;\
case $? in
0)
echo "Result: Yes chosen.";;
1)
echo "Result: No chosen.";;
255)
echo "ESC pressed.";;
esac

dialog --help
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Xdialog --help

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dialog --yesno "text string" <height> <width>

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#!/bin/sh
# 
# pppdialout 
#
#DIALOG=Xdialog
DIALOG=dialog
#
# ����Ĭ��ISP������:
defaultisp=maxnet
#
error()
{
    echo "$1"
    exit 2
}
help()
{
  cat <<HELP
pppdialout -- select an ISP and dial out.
All available ISPs must have a config file in /etc/ppp/peers

pppdialout executes the ppp-on/ppp-off scripts as described
in http://linuxfocus.org/English/March2001/article192.shtml

pppdialout, copyright gpl, http://linuxfocus.org/English/November2002
HELP
  exit 0
}

# �����������:
while [ -n "$1" ]; do
case $1 in
    -h) help;shift 1;; # function help is called
    --) shift;break;; # end of options
    -*) echo "error: no such option $1. -h for help";exit 1;;
    *)  break;;
esac
done

tempfile=/tmp/pppdialout.$$
trap "rm -f $tempfile" 1 2 5 15

# �����Ƿ��Ѿ�����internet
if /sbin/ifconfig | grep '^ppp' > /dev/null; then
    # �����Ѿ�����
    $DIALOG --title "go offline" --yesno "Click YES to \
                     terminate the ppp connection" 0 0
    rval="$?"
    clear 
    if [ "$rval" = "0" ]; then
        echo "running /etc/ppp/scripts/ppp-off ..."
        /etc/ppp/scripts/ppp-off
    fi
else
    # û����internet����, ��������
    # �� /etc/ppp/peers ȡ�ÿ��õ�ISP�б�
    for f in `ls /etc/ppp/peers`; do
        if [ -f "/etc/ppp/peers/$f" ]; then
            isplist="$isplist $f =="
        fi
    done
    [ -z "$isplist" ]&&error "No isp def found in /etc/ppp/peers"
    #
    $DIALOG --default-item "$defaultisp" --title "pppdialout"  \
         --menu "Please select one of\
    the following ISPs for dialout" 0 0 0 $isplist 2> $tempfile
    rval="$?" # return status, isp name will be in $tempfile
    clear
    if [ "$rval" = "0" ]; then
        isp=`cat $tempfile`
        echo "running /etc/ppp/scripts/ppp-on $isp..."  
        /etc/ppp/scripts/ppp-on "$isp"
    else
        echo "Cancel..."    
    fi
    rm -f $tempfile
fi
# pppdialout ����

dialog --menu "text" <height> <width> <menu height> <tag1> <description> ...

isp1 == isp2 == isp3 ==

... Xdialog������Ư����GTKͼ�ν���:




... �ն������� curses �� dialog :

�����ij���More applications

mktgz yourpackage .

�ܽ�

���������� Xdialog �� dialog?

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• Xdialog: http://www.chez.com/godefroy/
  dialog: http://hightek.org/dialog/
  
• Xdialog �ĵ�: http://www.chez.com/godefroy/doc/index.html
  
• ���� LinuxFocus ����:
  
  • Using different ISPs for your Internet access
    
  • Shell Programming
    
• pppdialout script
• mktgz script

����ƪ���·�������

2003-04-06, generated by lfparser version 2.25