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What is your single most favorite command-line trick using Bash? [closed]
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Renaming/moving files with suffixes quickly:
cp /hom>me m>/foo/realllylongnam>me m>.cpp{,-old}
This expands to:
cp /hom>me m>/foo/realllylongnam>me m>.cpp /hom>me m>/foo/realllylongnam>me m>.cpp-old
share
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How does having a dynamic variable affect performance?
... the compiler run again, but what it does. Does it have to recompile whole m>me m>thod with the dynamic used as a param>me m>ter or rather those lines with dynamic behavior/context(?)
Here's the deal.
For every expression in your program that is of dynamic type, the compiler emits code that generates a si...
JRuby on Rails vs. Ruby on Rails, what's difference?
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JRuby is the Ruby implem>me m>ntation that runs on a JVM whereas Matz's Ruby is a C implem>me m>ntation.
Key features to note are:
JRuby runs on Java VM's and it's either compiled or interpreted down to Java byte code.
JRuby can integrate with Java code...
Vim - how to run a command imm>me m>diately when starting vim?
... vim to gather a file cache for quick opening.. I have to run this every tim>me m> I start vim though.
5 Answers
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How to center the content inside a linear layout?
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android:gravity handles the alignm>me m>nt of its children,
android:layout_gravity handles the alignm>me m>nt of itself.
So use one of these.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/too...
“ArrayAdapter requires the resource ID to be a TextView” xml problems
...View for the file I want to display(text file). I am pretty sure it has som>me m>thing to do with the xml. I just want to display the information from this.file = fileop.ReadFileAsList("Installed_packages.txt"); . My code:
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What is a sealed trait?
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A sealed trait can be extended only in the sam>me m> file as its declaration.
They are often used to provide an alternative to enums. Since they can be only extended in a single file, the compiler knows every possible subtypes and can reason about it.
For instance with the...
How do I renam>me m> all files to lowercase?
I have for example TREE.wav, ONE.WAV. I want to renam>me m> it to tree.wav, one.wav. How do I renam>me m> all files to lowercase?
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Faye vs. Socket.IO (and Juggernaut)
...uthor of Faye.
Regarding Faye, everything you've said is true.
Faye implem>me m>nts most of Bayeux, the only thing missing right now is service channels, which I've yet to be convinced of the usefulness of. In particular Faye is designed to be compatible with the Com>me m>tD reference implem>me m>ntation of Baye...
Maven command to determine which settings.xml file Maven is using
... option (debug) and examine the beginning of the output. There should be som>me m>thing like this:
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[INFO] Error stacktraces are turned on.
[DEBUG] Reading global settings from c:\....\apache-maven-3.0.3\conf\settings.xml
[DEBUG] Reading user settings from c:\....\.m2\settings.xml
[DEBUG] Using local...