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内网时间同步问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...tpdate -u 172.16.58.40 172.16.58.14 172.23.32.142 172.24.18.141 172.24.147.11
1 1 * * * /sbin/hwclock -w
目前 Linux 系统上面有两个时间喔，一个是 Linux 系统，另一个则是 BIOS 时间(真正的硬件记录的时间)！ 我们可以使用 date 这个指令来手动修正...
Using unset vs. setting a variable to empty
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143
Mostly you don't see a difference, unless you are using set -u:
/home/user1> var=""
/home/...
How can I access getSupportFragmentManager() in a fragment?
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11
This is an overhead. See my answer below... getFragmentManager() is really all you need.
– Mark
Jul ...
What is an idiomatic way of representing enums in Go?
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11
You can use iota + 1 to not begin at 0.
– Marçal Juan
Jul 25 '14 at 8:32
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Changing user agent on urllib2.urlopen
...cripts. For example, Mozilla Firefox may identify itself as "Mozilla/5.0 (X11; U; Linux i686) Gecko/20071127 Firefox/2.0.0.11", while urllib2‘s default user agent string is "Python-urllib/2.6" (on Python 2.6).
share
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Calling a Fragment method from a parent Activity
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211
not get the question exactly as it is too simple :
ExampleFragment fragment = (ExampleFragmen...
Diff files present in two different directories
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answered Jan 7 '10 at 11:31
Laurent EtiembleLaurent Etiemble
25.3k55 gold badges5252 silver badges8181 bronze badges
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MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
...d exit
-h [ --host ] arg mongo host to connect to ( <set name>/s1,s2 for sets)
--port arg server port. Can also use --host hostname:port
--ipv6 enable IPv6 support (disabled by default)
-u [ --username ] arg username
-p [ --password ] arg ...
PHP - iterate on string characters
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answered Jan 5 '11 at 5:20
SeaBrightSystemsSeaBrightSystems
1,96611 gold badge1212 silver badges44 bronze badges
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do N times (declarative syntax)
...6 times.
– Ian Newson
Aug 31 '16 at 11:45
Then I guess it's been selected as best answer as it may be a good cleaner s...