ubuntu时区设置

1 使用tzselect命令设置时间，时区设置为东八区

root@ubuntu:~# tzselect Please identify a location so that time zone rules can be set correctly.Please select a continent, ocean, "coord", or "TZ". 1) Africa 2) Americas 3) Antarctica 4) Arctic Ocean 5) Asia 6) Atlantic Ocean 7) Australia 8) Europe 9) Indian Ocean10) Pacific Ocean11) coord - I want to use geographical coordinates.12) TZ - I want to specify the time zone using the Posix TZ format.#? 5Please select a country whose clocks agree with yours. 1) Afghanistan       18) Israel            35) Palestine 2) Armenia       19) Japan         36) Philippines 3) Azerbaijan        20) Jordan            37) Qatar 4) Bahrain       21) Kazakhstan        38) Russia 5) Bangladesh        22) Korea (North)     39) Saudi Arabia 6) Bhutan        23) Korea (South)     40) Singapore 7) Brunei        24) Kuwait            41) Sri Lanka 8) Cambodia          25) Kyrgyzstan        42) Syria 9) China         26) Laos          43) Taiwan10) Cyprus        27) Lebanon           44) Tajikistan11) East Timor        28) Macau         45) Thailand12) Georgia       29) Malaysia          46) Turkmenistan13) Hong Kong         30) Mongolia          47) United Arab Emirates14) India         31) Myanmar (Burma)       48) Uzbekistan15) Indonesia         32) Nepal         49) Vietnam16) Iran          33) Oman          50) Yemen17) Iraq          34) Pakistan#? 9Please select one of the following time zone regions.1) Beijing Time2) Xinjiang Time#? 1The following information has been given:    China    Beijing TimeTherefore TZ='Asia/Shanghai' will be used.Local time is now:  Sun Oct 23 17:56:15 CST 2016.Universal Time is now:  Sun Oct 23 09:56:15 UTC 2016.Is the above information OK?1) Yes2) No#? 1You can make this change permanent for yourself by appending the line TZ='Asia/Shanghai'; export TZ to the file '.profile' in your home directory; then log out and log in again.Here is that TZ value again, this time on standard output so that youcan use the /usr/bin/tzselect command in shell scripts:Asia/Shanghai

2 设置好后查看时间竟然没变，根据上面信息的最后说明，在profile中添加环境变量TZ=’Asia/Shanghai’

root@ubuntu:~# date -R    #查看时间和时区root@ubuntu:~# vim /etc/profile        #编辑环境变量文件root@ubuntu:~# source /etc/profile     #使环境变量立即生效