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What does $$ mean in the shell?
...me for a variety of reasons.
For temporary file names, use the mktemp command.
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What does href expression do?
...ollowing href used in webpages from time to time. However, I don't understand what this is trying to do or the technique. Can someone elaborate please?
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Stopping an Android app from console
Is it possible to stop an Android app from the console? Something like:
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How to format a floating number to fixed width in Python
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So I understand that the 4f represents limiting the decimals to 4 (with trailing zeros), but what does the 10 mean? Does that mean this formatting won't work with integers greater than 9999999999 (ten 9's)? Just curious.
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How to detect Windows 64-bit platform with .NET?
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UPDATE: As Joel Coehoorn and others suggest, starting at .NET Framework 4.0, you can just check Environment.Is64BitOperatingSystem.
IntPtr.Size won't return the correct value if running in 32-bit .NET Framework 2.0 on 64-bit Windows (it would return...
Gson - convert from Json to a typed ArrayList
...JsonLog is an interface implemented by different kinds of logs made by my Android app--SMS logs, call logs, data logs--and this ArrayList is a collection of all of them. I keep getting an error in line 6.
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Android: ProgressDialog.show() crashes with getApplicationContext
...e you using? If I'm right about what the problem is then this was fixed in Android 1.6 (API version 4).
It looks like the object reference that getApplicationContext() is returning just points to null. I think you're having a problem similar to one I had in that some of the code in the onCreate() i...
Recover from git reset --hard?
...r backup. Perhaps your editor/IDE stores temp copies under /tmp or C:\TEMP and things like that.[1]
git reset HEAD@{1}
This will restore to the previous HEAD
[1] vim e.g. optionally stores persistent undo, eclipse IDE stores local history; such features might save your a**
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How to programmatically cause a core dump in C/C++
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: : :
raise (SIGABRT);
Calling abort() will also cause a core dump, and you can even do this without terminating your process by calling fork() followed by abort() in the child only - see this answer for details.
shar...
“message failed to fetch from registry” while trying to install any module
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I had this issue with npm v1.1.4 (and node v0.6.12), which are the Ubuntu 12.04 repository versions.
It looks like that version of npm isn't supported any more, updating node (and npm with it) resolved the issue.
First, uninstall the outdated version (optio...