Ubuntu操作系统默认包含Nautilus文件管理器。 尽管 有些人在管理环境时喜欢其他程序很难包括其中的几种以适应所有口味，特别是因为许多依赖于某些类型的办公桌。
因此，在本指南中，我们将解释 如何将Thunar浏览器设置为默认应用 在您的Ubuntu系统上。 您将有几种方法可以选择最适合您的口味的一种。
尽管Canonical的人们推荐的方法是手动方法，但我们又给您留下了两种，以便您可以选择最适合自己的一种方法。
手动激活Thunar
Ubuntu系统的默认配置被位于目录中的每个用户的特定用户覆盖 主页 每个。 我们将进入路线 〜/ .local / share /应用程序 （请记住，它是指目录 主页 而不是目录 USR）Y 我们将创建一个名为thunar.desktop的文件 具有以下信息：
[Desktop Entry] Name=Open Folder TryExec=thunar Exec=thunar %U NoDisplay=true Terminal=false Icon=folder-open StartupNotify=true Type=Application MimeType=x-directory/gnome-default-handler;x-directory/normal;inode/directory;application/x-gnome-saved-search;
然后 编辑defaults.list文件 位于 〜/ .local / share /应用程序 并输入以下几行：
inode/directory=thunar.desktop x-directory/normal=thunar.desktop
这样，MIME类型将与thunar关联，您将能够立即看到效果，而无需重新启动计算机。
通过脚本激活Thunar
运行以下命令 脚本，将下面剩下的代码复制到您在目录中创建的文件中 主页。 在我们的指南中，我们将其命名为 defaultthunar。
#!/bin/bash
## 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;
然后，将以下命令粘贴到您的终端中，您将完成：
chmod +x defaultthunar ./defaultthunar
为GUI爱好者激活Thunar
最后，对于那些不需要太多并发症的人，您喜欢 从窗口环境配置系统，请尝试从终端控制台运行以下命令：
exo-preferred-applications
接下来，将出现一个类似以下窗口的窗口，您可以从中选择您的经理：
