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How to retrieve the first word of the output of a command in bash?
... way is the use of bash arrays:
array=( $string ) # do not use quotes in order to allow word expansion
echo ${array[0]} # You can retrieve any word. Index runs from 0 to length-1
Also, you can directly read arrays in a pipe-line:
echo "word1 word2" | while read -a array; do echo "${array[0]}" ...
What does cherry-picking a commit with Git mean?
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This is in contrast with other ways such as merge and rebase which normally apply many commits onto another branch.
Make sure you are on the branch you want to apply the commit to.
git checkout master
Execute the following:
git cherry-pick <commit-hash>
N.B.:
If you cherry-pick f...
Swift: Convert enum value to String?
...". Edit OK, it's the editor getting rid of it, I had to enter 2 of them in order for it to show up
– zmit
Feb 5 '15 at 13:51
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Check if a value exists in pandas dataframe index
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Is a memory leak created if a MemoryStream in .NET is not closed?
... method to make sure ms2 gets Disposed.
It will eventually get cleaned up by the garbage collector, but it is always good practice to call Dispose. If you run FxCop on your code, it would flag it as a warning.
share
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What's the difference between libev and libevent?
... each of these, by not using global variables but using a loop context for all functions, by using small watchers for each event type (an I/O watcher uses 56 bytes on x86_64 compared to 136 for libevent), allowing extra event types such as timers based on wallclock vs. monotonic time, inter-thread i...
“X does not name a type” error in C++
... before you use it as a member. This is solved by reversing the definition order. However, you have a cyclic dependency: if you move MyMessageBox above User, then in the definition of MyMessageBox the name User won't be defined!
What you can do is forward declare User; that is, declare it but don't...
How to avoid passing parameters everywhere in play2?
In play1, I usually get all data in actions, use them directly in views. Since we don't need to explicitly declare parameters in view, this is very easy.
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How do I restart a service on a remote machine in Windows? [closed]
... for scripting a number of remote commands and doesn't guarantee execution order or command completion before the next command. The SC command is much better for this. Take a look at the batch scripts I posted in this question: stackoverflow.com/questions/1405372/…
– Eric Fal...
Is it possible to make anonymous inner classes in Java static?
... a reference to the pointer of the containing instance (they are also not called inner classes anymore, they are called nested classes).
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