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How to tell if a string is not defined in a Bash shell script
...Autoconf, you'll find that they do not recommend combining terms with '-a' and do recommend using separate simple tests combined with &&. I've not encountered a system where there is a problem; that doesn't mean they didn't used to exist (but they are probably extremely rare these days, eve...
Different bash prompt for different vi editing mode?
...have a prompt that depends on the mode you are currently in (insert or command). How does one find out this editing mode?
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HTML anchor link - href and onclick both?
I want to author an anchor tag that executes some JavaScript and then proceeds to go wherever the href was taking it. Invoking a function that executes my JavaScript and then sets window.location or top.location to the href location doesn't work for me.
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Python executable not finding libpython shared library
I am installing Python 2.7 on CentOS 5. I built and installed Python as follows
9 Answers
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Python SQL query string formatting
...bugging
my application I'd like to log to file all the sql query strings, and it is
important that the string is properly formated.
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Truncate Two decimal places without rounding
Lets say I have a value of 3.4679 and want 3.46, how can I truncate to two decimal places that without rounding up?
21 Answ...
How does the const constructor actually work?
...calized" instance.
That is, all constant expressions begin canonicalized, and later these "canonicalized" symbols are used to recognize equivalence of these constants.
Canonicalization:
A process for converting data that has more than one possible representation into a "standard" canonical repres...
Short circuit Array.forEach like calling break
... new forEach method in JavaScript? I've tried return; , return false; and break . break crashes and return does nothing but continue iteration.
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How to create a directory if it doesn't exist using Node.js?
...rectory if it doesn't exist.
It should have full permission for the script and readable by others.
17 Answers
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What is the benefit of using Fragments in Android, rather than Views?
When developing for Android , you can set your target (or minimum) sdk to 4 (API 1.6) and add the android compatibility package (v4) to add support for Fragments . Yesterday I did this and successfully implemented Fragments to visualize data from a custom class.
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