[pupilzeng]

如果你有多个窗口管理器，而又喜欢用startx启动的话，那这个脚本可以满足你的要求。
1.修改startx,变成这样:

#!/bin/sh

# $Xorg: startx.cpp,v 1.3 2000/08/17 19:54:29 cpqbld Exp $
#
# This is just a sample implementation of a slightly less primitive
# interface than xinit.  It looks for user .xinitrc and .xserverrc
# files, then system xinitrc and xserverrc files, else lets xinit choose
# its default.  The system xinitrc should probably do things like check
# for .Xresources files and merge them in, startup up a window manager,
# and pop a clock and serveral xterms.
#
# Site administrators are STRONGLY urged to write nicer versions.
#
# $XFree86: xc/programs/xinit/startx.cpp,v 3.12.2.2 2002/01/28 18:27:34 tsi Exp $

#--------------------增加----------------------
GNOME=$HOME/.startx/gnome
ICEWM=$HOME/.startx/icewm
#FVWM=$HOME/.startx/fvwm
#-----------------------------------------------

userclientrc=$HOME/.xinitrc
userclientrc=$HOME/.xinitrc
userserverrc=$HOME/.xserverrc
sysclientrc=/usr/X11R6/lib/X11/xinit/xinitrc
sysserverrc=/usr/X11R6/lib/X11/xinit/xserverrc
defaultclient=/usr/X11R6/bin/xterm
defaultserver=/usr/X11R6/bin/X
defaultclientargs=""
defaultserverargs=""
clientargs=""
serverargs=""






if [ -f $userclientrc ]; then
    defaultclientargs=$userclientrc
elif [ -f $sysclientrc ]; then
    defaultclientargs=$sysclientrc
fi
if [ -f $userserverrc ]; then
    defaultserverargs=$userserverrc
elif [ -f $sysserverrc ]; then
    defaultserverargs=$sysserverrc
fi

whoseargs="client"
while [ x"$1" != x ]; do
    case "$1" in
#----------------------增加--------------------------
    gnome)
        if [ x"$clientargs" = x ]; then
            if [ -e $GNOME ]; then
                client=$GNOME
            fi
        else
            clientargs="$clientargs $1"
        fi
        ;;    icewm)
        if [ x"$clientargs" = x ]; then
            if [ -e $ICEWM ]; then
                client=$ICEWM
            fi
        else
            clientargs="$clientargs $1"
        fi
        ;;
#    fvwm)
#       client=$FVWM
#       ;;
#if there are more window manager that you want to start by startx,
#you can add it here
#    ...)
#       ;;
#-----------------------------------------------------------------
    # '' required to prevent cpp from treating "/*" as a C comment.
    /''*|\./''*)
        if [ "$whoseargs" = "client" ]; then
            if [ x"$clientargs" = x ]; then
                        client="$1"
            else
                clientargs="$clientargs $1"
            fi  
        else
            if [ x"$serverargs" = x ]; then
                server="$1"
            else
                serverargs="$serverargs $1"
            fi
        fi
        ;;
    --)
        whoseargs="server"
        ;;
    *)
        if [ "$whoseargs" = "client" ]; then
            clientargs="$clientargs $1"
        else
            # display must be the FIRST server argument
             if [ x"$serverargs" = x ] &&                 expr "$1" : ':[0-9][0-9]*$' > /dev/null 2>&1; then

                display="$1"
            else
                serverargs="$serverargs $1"
            fi
        fi
        ;;
    esac
    shift
done

# process client arguments
if [ x"$client" = x ]; then
    # if no client arguments either, use rc file instead
    if [ x"$clientargs" = x ]; then
        client="$defaultclientargs"
    else
        client=$defaultclient
    fi
   fi                                                                              
# process server arguments
if [ x"$server" = x ]; then
    # if no server arguments or display either, use rc file instead
    if [ x"$serverargs" = x -a x"$display" = x ]; then
        server="$defaultserverargs"
    else
        server=$defaultserver
    fi
fi  

if [ x"$XAUTHORITY" = x ]; then
    XAUTHORITY=$HOME/.Xauthority
    export XAUTHORITY
fi  
    
removelist=
  # set up default Xauth info for this machine

# check for GNU hostname
if hostname --version > /dev/null 2>&1; then
        if [ -z "`hostname --version 2>&1 | grep GNU`" ]; then
                hostname=`hostname -f`
        fi
fi

if [ -z "$hostname" ]; then
        hostname=`hostname`
fi

authdisplay=${display:-:0}
mcookie=`mcookie`
for displayname in $authdisplay $hostname$authdisplay; do
    if ! xauth list "$displayname" | grep "$displayname " >/dev/null 2>&1; then
        xauth add $displayname . $mcookie
        removelist="$displayname $removelist"
    fi
done
                                                                        
xinit $client $clientargs -- $server $display $serverargs

if [ x"$removelist" != x ]; then
    xauth remove $removelist
fi      



        

if command -v deallocvt > /dev/null 2>&1; then
    deallocvt
fi

2.然后创建文件~/.startx/gnome,~/.startx/icewm
下面是我的文件内容：
>cat ~/.startx/gnome
exec gnome-session
>cat ~/.startx/icewm
fcitx &
xscreensaver -no-splash &
exec /usr/bin/icewm
killall fcitx
其实他们的作用跟~/.xinitrc是一样的。
3.使用方法。
启动gnome:startx gnome
启动icewm:startx icewm
当然还是可以利用~/.xinitrc:startx
仿照这个方法，你也可以改动它，能启动其他的一些窗口管理器。

[KornLee]

very good

[tylj]

mandrake就是用这个方式启动到不同的图形界面，是不是借用过来的呢？

[pupilzeng]

不是吧？
我只是在懂shell 之前用过mandrake，它不是用gmd/kdm启动？

[neil007]

我写了几个非常简单的脚本,名字叫xfvwm,ice,kde,等,然后在自己的根目录下写了几个.XSESSION的复本,比如启动FVWM
$cat xfvwm
cp ~/.xsession-fvwm ~/.xsession
startx
呵呵,只是太简单了

[carlos]

我觉得neil007的方法更好一些
不是任何用户都有权改startx的