从前blog移植过来，暂无摘要，后期再补
配置时区的命令是：
dpkg-reconfigure tzdata
运行后选择要修改的时区对应的编号，如选Asia时，在Geographic area: 填6
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.)
debconf: falling back to frontend: Readline
Configuring tzdata
------------------
Please select the geographic area in which you live. Subsequent configuration questions will narrow this down by presenting a list of cities, representing the time zones in which they are located.
1. Africa 2. America 3. Antarctica 4. Australia 5. Arctic Ocean 6. Asia 7. Atlantic Ocean 8. Europe 9. Indian Ocean 10. Pacific Ocean 11. System V timezones 12. US 13. None of the above
Geographic area: 6
选择后Asia后，
Please select the city or region corresponding to your time zone.
1. Aden 8. Baghdad 15. Chita 22. Dubai 29. Hovd 36. Kamchatka 43. Kuala_Lumpur 50. Muscat 57. Pontianak 64. Samarkand 71. Tbilisi 78. Urumqi
2. Almaty 9. Bahrain 16. Choibalsan 23. Dushanbe 30. Irkutsk 37. Karachi 44. Kuching 51. Nicosia 58. Pyongyang 65. Seoul 72. Tehran 79. Ust-Nera
3. Amman 10. Baku 17. Chongqing 24. Gaza 31. Istanbul 38. Kashgar 45. Kuwait 52. Novokuznetsk 59. Qatar 66. Shanghai 73. Tel_Aviv 80. Vientiane
4. Anadyr 11. Bangkok 18. Colombo 25. Harbin 32. Jakarta 39. Kathmandu 46. Macau 53. Novosibirsk 60. Qyzylorda 67. Singapore 74. Thimphu 81. Vladivostok
5. Aqtau 12. Beirut 19. Damascus 26. Hebron 33. Jayapura 40. Khandyga 47. Magadan 54. Omsk 61. Rangoon 68. Srednekolymsk 75. Tokyo 82. Yakutsk
6. Aqtobe 13. Bishkek 20. Dhaka 27. Ho_Chi_Minh 34. Jerusalem 41. Kolkata 48. Makassar 55. Oral 62. Riyadh 69. Taipei 76. Ujung_Pandang 83. Yekaterinburg
7. Ashgabat 14. Brunei 21. Dili 28. Hong_Kong 35. Kabul 42. Krasnoyarsk 49. Manila 56. Phnom_Penh 63. Sakhalin 70. Tashkent 77. Ulaanbaatar 84. Yerevan
Time zone: 66
选上海则选66
Current default time zone: 'Asia/Shanghai'
Local time is now: Fri Oct 16 11:20:19 CST 2015.
Universal Time is now: Fri Oct 16 03:20:19 UTC 2015.
设置成功