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Random number from a range in a Bash Script
...it on Ubuntu systems in the last couple years but not the current RHEL/CentOS.
– Cascabel
Mar 31 '10 at 20:37
5
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Singleton: How should it be used
...ee cargo cult programmer in wikipedia)
In user interface widgets
It is supposed to be a cache
In strings
In Sessions
I can go all day long
How to create the best singleton:
The smaller, the better. I am a minimalist
Make sure it is thread safe
Make sure it is never null
Make sure it is created onl...
How can I put strings in an array, split by new line?
...ful with this solution, as it does not work on all newlines. I've had the most success with David's answer
– Maurice
Aug 29 '12 at 7:31
1
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How to install psycopg2 with “pip” on Python?
...s. Below are solutions for Linux, Mac users, since lots of them find this post through web searches.
Option 1
Install the psycopg2-binary PyPI package instead, it has Python wheels for Linux and Mac OS.
pip install psycopg2-binary
Option 2
Install the prerequsisites for building the psycop...
Learn C first before learning Objective-C [closed]
... faster at runtime.
What I'm trying to say here: Every language has its pros and cons. C has pros and cons and so does Obj-C. However, the really great feature of Obj-C (that's why I even like it more than Java) is that you can jump to plain C at will and back again. Why this is such a great featur...
Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools
...id SDK isn't x64, but works ok with x64 jvm (and x64 eclipse IDE).
As helios said, you must set project compatibility to Java 5.0 or Java 6.0.
To do that, 2 options:
Right-click on your project and select "Android Tools -> Fix
Project Properties" (if this din't work, try second option)
Right...
dyld: Library not loaded: /usr/local/lib/libpng16.16.dylib with anything php related
... Thank you, I uninstalled and re-installed homebrew completely but retrospect I think this would have been a better option.
– user3458861
Mar 26 '14 at 9:03
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Can you make valid Makefiles without tab characters?
On my system (Mac OS X), make seems to require that that Makefiles have a tab character preceding the the content of each command line, or it throws a syntax error.
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Why do we need the “finally” clause in Python?
...
You can use finally to make sure files or resources are closed or released regardless of whether an exception occurs, even if you don't catch the exception. (Or if you don't catch that specific exception.)
myfile = open("test.txt", "w")
try:
myfile.write("the Answer is: ")
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How can I use xargs to copy files that have spaces and quotes in their names?
...
On OS X 10.9 grep -{z|Z} means "behave as zgrep" (decompress) and not the intended "print a zero byte after each filename". Use grep --null to achieve the latter.
– bassim
Feb 7 '14 at 11:2...