用户注销时的脚本执行（非root用户）

我在大学实验室里运行ubuntu 12.10并且我没有root权限。 我需要在注销时运行脚本。 这可能吗？

注意：这可能是这个问题的重复，但是给出的答案非常神秘，没有给出具体的指示。

Answer 1

这是gnome_save_yourself方法的一步一步程序。 我们来做一个测试。

1. 将以下代码保存为~/Desktop/execute_script_on_shutdown.sh （来自http://www.linuxquestions.org/questions/linux-desktop-74/gnome-run-script-on-logout-724453/#post3560301 ）

    #!/usr/bin/env python #Author: Seamus Phelan #This program runs a custom command/script just before gnome shuts #down. This is done the same way that gedit does it (listening for #the 'save-yourself' event). This is different to placing scipts #in /etc/rc#.d/ as the script will be run before gnome exits. #If the custom script/command fails with a non-zero return code, a #popup dialog box will appear offering the chance to cancel logout # #Usage: 1 - change the command in the 'subprocess.call' in # function 'session_save_yourself' below to be what ever # you want to run at logout. # 2 - Run this program at every gnome login (add via menu System # -> Preferences -> Session) # # import sys import subprocess import datetime import gnome import gnome.ui import gtk class Namespace: pass ns = Namespace() ns.dialog = None def main(): prog = gnome.init ("gnome_save_yourself", "1.0", gnome.libgnome_module_info_get(), sys.argv, []) client = gnome.ui.master_client() #set up call back for when 'logout'/'Shutdown' button pressed client.connect("save-yourself", session_save_yourself) client.connect("shutdown-cancelled", shutdown_cancelled) def session_save_yourself( *args): #Lets try to unmount all truecrypt volumes #execute shutdowwn script ######################################################################################### retcode = subprocess.call("bash /home/totti/Desktop/shutdown_script.sh", shell=True) ########################################################################################## if retcode != 0: #command failed show_error_dialog() return True def shutdown_cancelled( *args): if ns.dialog != None: ns.dialog.destroy() return True def show_error_dialog(): ns.dialog = gtk.Dialog("There was a problem running your pre-shutdown script", None, gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT, ("There was a problem running your pre-shutdown script - continue logout", gtk.RESPONSE_ACCEPT)) if ns.test_mode == True: response = ns.dialog.run() ns.dialog.destroy() else: #when in shutdown mode gnome will only allow you to open a window using master_client().save_any_dialog() #It also adds the 'Cancel logout' button gnome.ui.master_client().save_any_dialog(ns.dialog) #Find out if we are in test mode??? if len(sys.argv) >=2 and sys.argv[1] == "test": ns.test_mode = True else: ns.test_mode = False if ns.test_mode == True: main() session_save_yourself() else: main() gtk.main() 

2. 使其可执行：

    chmod +x ~/Desktop/execute_script_on_shutdown.sh 

3. 将以下内容保存为~/Desktop/shutdown_script.sh

    #!/usr/bin/bash touch ~/Desktop/AAAAAAAAAAAAAAAAAAAAAAAAAAA 

4. 执行主脚本

    bash ~/Desktop/execute_script_on_shutdown.sh 

现在你觉得脚本等待了什么

1. 注销或关闭您的操作系统（Ubuntu）
2. 登录

3. 在桌面上检查名为AAAAAAAAAAAAAAAAAAAAAAAAAAA的文件。

    ls -l ~/Desktop/AAAAAAAAAAAAAAAAAAAAAAAAAAA 

如果你看到文件一切正常。 现在您可以编辑shutdown_script.sh以满足您的需要。 还记得在登录时执行execute_script_on_shutdown.sh （或在启动时使其自动执行）。