更新后文件关联全错了，改也错

lmguy

把zip改为file-roller打开，文本也变成这样。
  把文本改为gvim，，，zip也默信变为gvim

jqxl0205

嗯，我这有一段代码，可以更改/usr/share/applications/mimeinfo.cache的打开文件的优先级

2. #! /usr/bin/env python
4. import re
5. import ConfigParser
7. mimetypes = [
8.         {"type": "image/vnd.djvu", "app_order": ["evince"]},
9.         {"type": "image/x-eps", "app_order": ["gimp", "evince"], "disable_app":["allothers"]},
10.         {"type": "image/*", "app_order": ["eog", "gthumb", "gimp"], "disable_app": ["allothers"]},
11.         {"type": "application/postscript", "app_order": ["evince"], "disable_app": ["allothers"]},
12.         {"type": "application/pdf", "app_order": ["evince", "foxitreader"], "disable_app": ["gimp"]},
13.         {"type": "application/x-shockwave-flash", "app_order": ["flashplayer", "flashplayer-debugger"]},
14.         {"type": "application/xhtml*", "disable_app": ["arora", "epiphany"]},
15.         {"type": "application/x-shellscript", "app_order": ["gedit", "gvim"]},
16.         {"type": "application/vnd\.rn-realmedia", "app_order": ["smplayer"]},
17.         {"type": "application/vnd\.oasis\.opendocument\.text", "app_order": ["writer"], "disable_app": ["allothers"]},
18.         {"type": "application/vnd\.oasis\.opendocument\.spreadsheet", "app_order": ["calc"], "disable_app": ["allothers"]},
19.         {"type": "text/rtf", "app_order": ["writer"]},
20.         {"type": "text/html", "app_order": ["firefox", "gvim"], "disable_app": ["allothers"]},
21.         {"type": "text/spreadsheet"},
22.         {"type": "text/*", "app_order": ["gedit", "gvim"], "disable_app": ["allothers"]},
23.         {"type": "video/x-ms*", "app_order": ["smplayer", "smplayer_enqueue", "vlc"]},
24. ]
26. def mime_match(mimetype):
27.         for m in mimetypes:
28.                 #print m["type"]
29.                 pattern = re.compile(m["type"])
30.                 if pattern.match(mimetype) != None:
31.                         return m
32.         return None
34. def disable(m, app):
35.         if "allothers" in m:
36.                 return True
37.         return app in m
38.                
39. cache_dir = "/usr/share/applications/"
40. cache_file = "%smimeinfo.cache" % (cache_dir)
42. config = ConfigParser.RawConfigParser()
43. config.read(cache_file)
44. print "[MIME Cache]"
45. for mimetype, apps in config.items("MIME Cache"):
46.         m = mime_match(mimetype)
47.        
48.         if m == None:
49.                 print "%s=%s" % (mimetype, apps)
50.                 continue
51.                
52. #        if not apps.endswith(";"):
53. #                if apps == "gvim.desktop" or apps == "emacs.desktop":                       
54. #                        print "%s=%s" % (mimetype, apps)
55. #                        print "%s=gedit.desktop;gvim.desktop;emacs.desktop;" % (mimetype)
56. #                        continue
57.                        
58.         apps = apps.rstrip(";").split(";")
59.         try:
60.                 apps.remove("")
61.         except ValueError:
62.                 pass
63.                
64.         new_apps = []
65.        
66.         if m.has_key("app_order"):
67.                 for x in m["app_order"]:
68.                         nx = "%s.desktop" % (x)
69. #                        print nx
70. #                        if nx in apps:
71.                         new_apps.append(nx)
72.        
73.         for a in apps:
74.                 if a not in new_apps:
75.                         if m.has_key("disable_app"):
76. #                                print "%s at %s" % (a, mimetype)
77.                                 if  not disable(m["disable_app"], a[:-8]):
78.                                         new_apps.append(a)
79.                         else:
80.                                 new_apps.append(a)
82.         if len(new_apps) == 1:
83.                 print "%s=%s" % (mimetype, new_apps[0])                       
84.         else:
85.                 print  "%s=%s;" % (mimetype, ";".join(new_apps))
86.                
87.                        

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配合下面的脚本使用

2. #! /bin/bash
4. sudo update-desktop-database
6. python change-mime-info.py > /tmp/mimeinfo.cache
8. sudo cp /tmp/mimeinfo.cache /usr/share/applications/
10. rm /tmp/mimeinfo.cache

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嗯，效果还不错！