將下面的shell保存爲文本文件，取名爲defaultthunar。
## Originally written by aysiu from the Ubuntu Forums
## This is GPL'ed code
## So improve it and re-release it
## Define portion to make Thunar the default if that appears to be the appropriate action
makethunardefault()
{
## I went with --no-install-recommends because
## I didn't want to bring in a whole lot of junk,
## and Jaunty installs recommended packages by default.
echo -e "/nMaking sure Thunar is installed/n"
sudo apt-get update && sudo apt-get install thunar --no-install-recommends
## Does it make sense to change to the directory?
## Or should all the individual commands just reference the full path?
echo -e "/nChanging to application launcher directory/n"
cd /usr/share/applications
echo -e "/nMaking backup directory/n"
## Does it make sense to create an entire backup directory?
## Should each file just be backed up in place?
sudo mkdir nonautilusplease
echo -e "/nModifying folder handler launcher/n"
sudo cp nautilus-folder-handler.desktop nonautilusplease/
## Here I'm using two separate sed commands
## Is there a way to string them together to have one
## sed command make two replacements in a single file?
sudo sed -i -n 's/nautilus --no-desktop/thunar/g' nautilus-folder-handler.desktop
sudo sed -i -n 's/TryExec=nautilus/TryExec=thunar/g' nautilus-folder-handler.desktop
echo -e "/nModifying browser launcher/n"
sudo cp nautilus-browser.desktop nonautilusplease/
sudo sed -i -n 's/nautilus --no-desktop --browser/thunar/g' nautilus-browser.desktop
sudo sed -i -n 's/TryExec=nautilus/TryExec=thunar/g' nautilus-browser.desktop
echo -e "/nModifying computer icon launcher/n"
sudo cp nautilus-computer.desktop nonautilusplease/
sudo sed -i -n 's/nautilus --no-desktop/thunar/g' nautilus-computer.desktop
sudo sed -i -n 's/TryExec=nautilus/TryExec=thunar/g' nautilus-computer.desktop
echo -e "/nModifying home icon launcher/n"
sudo cp nautilus-home.desktop nonautilusplease/
sudo sed -i -n 's/nautilus --no-desktop/thunar/g' nautilus-home.desktop
sudo sed -i -n 's/TryExec=nautilus/TryExec=thunar/g' nautilus-home.desktop
echo -e "/nModifying general Nautilus launcher/n"
sudo cp nautilus.desktop nonautilusplease/
sudo sed -i -n 's/Exec=nautilus/Exec=thunar/g' nautilus.desktop
## This last bit I'm not sure should be included
## See, the only thing that doesn't change to the
## new Thunar default is clicking the files on the desktop,
## because Nautilus is managing the desktop (so technically
## it's not launching a new process when you double-click
## an icon there).
## So this kills the desktop management of icons completely
## Making the desktop pretty useless... would it be better
## to keep Nautilus there instead of nothing? Or go so far
## as to have Xfce manage the desktop in Gnome?
echo -e "/nChanging base Nautilus launcher/n"
sudo dpkg-divert --divert /usr/bin/nautilus.old --rename /usr/bin/nautilus && sudo ln -s /usr/bin/thunar /usr/bin/nautilus
echo -e "/nRemoving Nautilus as desktop manager/n"
killall nautilus
echo -e "/nThunar is now the default file manager. To return Nautilus to the default, run this script again./n"
}
restorenautilusdefault()
{
echo -e "/nChanging to application launcher directory/n"
cd /usr/share/applications
echo -e "/nRestoring backup files/n"
sudo cp nonautilusplease/nautilus-folder-handler.desktop .
sudo cp nonautilusplease/nautilus-browser.desktop .
sudo cp nonautilusplease/nautilus-computer.desktop .
sudo cp nonautilusplease/nautilus-home.desktop .
sudo cp nonautilusplease/nautilus.desktop .
echo -e "/nRemoving backup folder/n"
sudo rm -r nonautilusplease
echo -e "/nRestoring Nautilus launcher/n"
sudo rm /usr/bin/nautilus && sudo dpkg-divert --rename --remove /usr/bin/nautilus
echo -e "/nMaking Nautilus manage the desktop again/n"
nautilus --no-default-window &
## The only change that isn't undone is the installation of Thunar
## Should Thunar be removed? Or just kept in?
## Don't want to load the script with too many questions?
}
## Make sure that we exit if any commands do not complete successfully.
## Thanks to nanotube for this little snippet of code from the early
## versions of UbuntuZilla
set -o errexit
trap 'echo "Previous command did not complete successfully. Exiting."' ERR
## This is the main code
## Is it necessary to put an elseif in here? Or is
## redundant, since the directory pretty much
## either exists or it doesn't?
## Is there a better way to keep track of whether
## the script has been run before?
if [[ -e /usr/share/applications/nonautilusplease ]]; then
restorenautilusdefault
else
makethunardefault
fi;
切換到終端運行：
chmod +x defaultthunar
默認的文件管理器會從
nautilus變爲Dolphin。
需要還原成nautilus的話，只需要重新執行：
chmod +x defaultthunar
./defaultthunar