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Ubuntu rails install fails on zlib
... 8.10 as my dev box; it's my first serious foray into Linux as a daily-use OS, and I'm having a hard time getting Rails going. I have followed a number of tutorials which all seem to work fine, but when I try and use gem install or gem update on anything, I get an error that looks like this:
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Run a batch file with Windows task scheduler
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I'm aware the original post is quite old. But this post was among the top link in google search when I was trying the answer for this problem. So I think I'd like to share the findings. Just in case, anybody including myself is forgotting this.
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Haskell offline documentation?
What are the possibilities, if any, for getting offline docs for Haskell core libraries (and maybe more)?
9 Answers
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How to concatenate two strings to build a complete path
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The POSIX standard mandates that multiple / are treated as a single / in a file name. Thus
//dir///subdir////file is the same as /dir/subdir/file.
As such concatenating a two strings to build a complete path is a simple as:
full...
Installing Ruby Gem in Windows
...t system of your
distribution or third-party tools (rbenv and RVM).
On OS X machines, you can use third-party tools (rbenv and RVM).
On Windows machines, you can use RubyInstaller.
share
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How do I prevent an Android device from going to sleep programmatically?
...ibes different approaches to keeping a device awake, and when you might choose to use one. If "prevent device from going to sleep" only refers to the screen (and not keeping the CPU active) then a wake lock is probably more than you need.
You also need to be sure you have the WAKE_LOCK permission s...
Inline functions vs Preprocessor macros
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Preprocessor macros are just substitution patterns applied to your code. They can be used almost anywhere in your code because they are replaced with their expansions before any compilation starts.
Inline functions are actual functions whose...
Installing SciPy with pip
It is possible to install NumPy with pip using pip install numpy .
15 Answers
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ALTER DATABASE failed because a lock could not be placed on database
...t the error, run
EXEC sp_who2
Look for the database in the list. It's possible that a connection was not terminated. If you find any connections to the database, run
KILL <SPID>
where <SPID> is the SPID for the sessions that are connected to the database.
Try your script after al...
Programmatically align a toolbar on top of the iPhone keyboard
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As of iOS 3.2 there's a new way to achieve this effect:
UITextFields and UITextViews have an inputAccessoryView property, which you can set to any view, that is automatically displayed above and animated with the keyboard.
Note th...