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Bash Templating: How to build configuration files from templates with Bash?
...$ENV{$1} ? $ENV{$1} : $&/eg' < template.txt
to replace all ${...} strings with corresponding enviroment variables (do not forget to export them before running this script).
For pure bash this should work (assuming that variables do not contain ${...} strings):
#!/bin/bash
while read -r li...
How to return a string value from a Bash function
I'd like to return a string from a Bash function.
18 Answers
18
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Iteration over std::vector: unsigned vs signed index variable
...++, you normally need to set it to work with the new standard by giving an extra flag:
g++ -std=c++0x -o auto auto.cpp
Now you can run the example:
$ ./auto
17
12
23
42
Please note that the instructions on compiling and running are specific to gnu c++ compiler on Linux, the program should be p...
In Python, how do I determine if an object is iterable?
...
Checking for __iter__ works on sequence types, but it would fail on e.g. strings in Python 2. I would like to know the right answer too, until then, here is one possibility (which would work on strings, too):
from __future__ import print_function
try:
some_object_iterator = iter(some_object)...
CSV API for Java [closed]
...'ve used OpenCSV in the past.
import au.com.bytecode.opencsv.CSVReader;
String fileName = "data.csv";
CSVReader reader = new CSVReader(new FileReader(fileName ));
// if the first line is the header
String[] header = reader.readNext();
// iterate over reader.readNext until it returns null
String[...
Resize HTML5 canvas to fit window
...y: block (it seemed to be defaulting to display: inline which was creating extra space!).
– Elisabeth
Apr 5 '12 at 22:00
15
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How do I remove all non-ASCII characters with regex and Notepad++?
I searched a lot, but nowhere is it written how to remove non-ASCII characters from Notepad++.
7 Answers
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How to document a method with parameter(s)?
How to document methods with parameters using Python's documentation strings?
8 Answers
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Installing Ruby Gem in Windows
...uby 2.0.0p353 (2013-11-22) [i386-mingw32]
For Ruby 2.4 or later, run the extra installation at the end to install the DevelopmentKit. If you forgot to do that, run ridk install in your windows console to install it.
For earlier versions:
Download and install DevelopmentKit from the same downloa...
Event on a disabled input
...vidual container of its own, if they aren't already laid out that way - an extra <span> or a <div>, say - just to make it easy to distinguish which disabled input was clicked).
The downside is that this trick unfortunately won't works for older browsers that don't support the pointer-...