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Ruby, Difference between exec, system and %x() or Backticks
... 22:11:02 CEST 2013
=> true
>> $?
=> #<Process::Status: pid 15470 exit 0>
Backticks
Backticks (``) call a system program and return its output. As opposed to the first approach, the command is not provided through a string, but by putting it inside a backticks pair.
>> `d...
How to cancel a pull request on github?
... Kai Noack
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answered Apr 13 '12 at 14:28
you cad sir - take thatyou cad sir - take that
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Toggle button using two image on different state
...droid:drawableLeft
– Patrick
Jun 1 '15 at 10:39
1
@Patrick But what if you want it center justifi...
Copy values from one column to another in the same table
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answered Sep 4 '15 at 10:22
Karan Kumar MahtoKaran Kumar Mahto
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What's the equivalent of Java's Thread.sleep() in Objective-C/Cocoa?
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edited Feb 15 '18 at 7:24
Pang
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How to add an Access-Control-Allow-Origin header
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answered Feb 15 '11 at 20:28
MazatecMazatec
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Why does casting int to invalid enum value NOT throw exception?
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answered Jun 20 '11 at 15:41
StriplingWarriorStriplingWarrior
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SQL set values of one column equal to values of another column in the same table
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157
Sounds like you're working in just one table so something like this:
update your_table
set B ...
How do I squash two non-consecutive commits?
...ogerdpack
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answered Oct 13 '10 at 7:55
RudiRudi
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Rails migrations: Undo default setting for a column
... Alex FortunaAlex Fortuna
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