大约有 26,000 项符合查询结果（耗时：0.0270秒） [XML]
Unim>x m>'s 'ls' sort by name
Can you sort an ls listing by name?
11 Answers
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kill -3 to get java thread dump
I am using kill -3 command to see the JVM's thread dump in unim>x m>. But where can I find the output of this kill command? I am lost!!
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Storing JSON in database vs. having a new column for each key
I am implementing the following model for storing user related data in my table - I have 2 columns - uid (primary key) and a meta column which stores other data about the user in JSON format.
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How to get started on TDD with Ruby on Rails? [closed]
...art with a guide to testing rails applications.
Also Railscast has some em>x m>cellent screencasts about how to use different testing tools.
What do I need to test?
I will start with models, since they are easy to test. The simple rule is that you need to cover every if statement in your test.
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Is char signed or unsigned by default?
... @Alok: the same is not true for some other datatypes, for em>x m>ample int means signed int always, right? Apart from char, what other datatypes have the same confusion in C?
– Lazer
Mar 28 '10 at 11:15
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Are HTML comments inside script tags a best practice? [closed]
...en if they can't interpret it.
Matt Kruse gives a slightly more detailed em>x m>planation on his JavaScript Toolbom>x m> site for why specifically not to use HTML comments within script blocks.
Quoted from that page:
Don't Use HTML Comments In Script Blocks
In the ancient days of javascript (1995), som...
“Debug certificate em>x m>pired” error in Eclipse Android plugins
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Delete your debug certificate under ~/.android/debug.keystore on Linum>x m> and Mac OS m>X m>; the directory is something like %USERPROFILE%/.androidon Windows.
The Eclipse plugin should then generate a new certificate when you nem>x m>t try to build a debug package. You may need to clean and then build to ...
git visual diff between branches
... GUI software, you can try something like SourceTree which supports Mac OS m>X m> and Windows.
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In vim, how do I go back to where I was before a search?
Programming in vim I often go search for something, yank it, then go back to where I was, insert it, modify it.
7 Answers
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Linum>x m> command or script counting duplicated lines in a tem>x m>t file?
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Send it through sort (to put adjacent items together) then uniq -c to give counts, i.e.:
sort filename | uniq -c
and to get that list in sorted order (by frequency) you can
sort filename | uniq -c | sort -nr
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