大约有 47,000 项符合查询结果（耗时：0.0334秒） [XML]
In the shell, what does “ 2>&1 ” mean?
...file
Mon Jan 7 13:18:21 CET 2013
The file is overwritten each time, well now:
$ set -o noclobber
$ date > $testfile ; cat $testfile
bash: /tmp/testNoClobberDate-WW1xi9: cannot overwrite existing file
Mon Jan 7 13:18:21 CET 2013
$ date > $testfile ; cat $testfile
bash: /tmp/testNoClobberDa...
Calculate difference between two datetimes in MySQL
...rence between the last login time and the current time (which I get using NOW() ).
3 Answers
...
How to determine day of week by passing specific date?
...all dateTime.dayOfWeek() and/or DateTimeFormat.
edit: since Java 8 you can now use java.time package instead of joda-time
share
|
improve this answer
|
follow
...
What are Unwind segues for and how do you use them?
...ind segues can often achieve the same thing with much less code. Actually, now you can dismiss a modally presented view controller without writing any code. Of course, there are still many cases when closing controllers from code is the right thing to do.
– Imre Kelényi
...
Difference between timestamps with/without time zone in PostgreSQL
...ly in the docs. The difference arises from what the system can reasonably know about the value:
With a time zone as part of the value, the value can be rendered as a local time in the client.
Without a time zone as part of the value, the obvious default time zone is UTC, so it is rendered for that...
How do I replace text in a selection?
...lect every instance of your selected text within the same document. If you now start typing to replace your original highlighted text, you will replace all of the other occurrences at the same time.
share
|
...
How to read and write into file using JavaScript?
...ion on the Javascript File class
Edit: That link was to the Sun docs that now have been moved by Oracle.
To keep up with the times here's the node.js documentation for the FileSystem class: http://nodejs.org/docs/latest/api/fs.html
Edit(2): You can read files client side now with HTML5: http://ww...
Update git commit author date when amending
...
FTR, looks like on OS X, date doesn't know -R. Using date without options did the job anyway
– ksol
Feb 2 '12 at 10:29
7
...
Ruby max integer
I need to be able to determine a systems maximum integer in Ruby. Anybody know how, or if it's possible?
6 Answers
...
How to Get the Title of a HTML Page Displayed in UIWebView?
...ion!) {
title = wv.title
}
I don't think UIWebView is suitable right now.
share
|
improve this answer
|
follow
|
...