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How do I set a variable to the output of a command in Bash?
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In addition to backticks `command`, command substitution can be done with $(command) or "$(command)", which I find easier to read, and allows for nesting.
OUTPUT=$(ls -1)
echo "${OUTPUT}"
MULTILINE=$(ls \
-1)
echo "${MULTILINE}"
Quoting (") doe...
Why does C# have break if it's not optional? [duplicate]
...tle errors that are very hard to debug. These errors result from the very common mistake of the developer adding a case, yet forgetting to put a break at the end of the block.
In C#, the switch statement requires that explicit flow control occur at the end of a case, either a break, goto, return, o...
How to stop mysqld
To find out the start command for mysqld (using a mac) I can do:
17 Answers
17
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How to get week number in Python?
...e calendar week:
>>> import datetime
>>> datetime.date(2010, 6, 16).isocalendar()[1]
24
datetime.date.isocalendar() is an instance-method returning a tuple containing year, weeknumber and weekday in respective order for the given date instance.
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How can I add an item to a IEnumerable collection?
... if it was an array - it uses ElementAt under the hood): connect.microsoft.com/VisualStudio/feedback/…. If we also get two more overloads of Concat to take a single item both on the left and on the right, this would cut down the typing to xs +=x - so go poke Mads (Torgersen) to prioritize this in...
Build fat static library (device + simulator) using Xcode and SDK 4+
...e this, then tweak it to add support for Archive builds - c.f. @Frederik's comment below on the changes he's using to make this work nicely with Archive mode.
RECENT CHANGES:
1. Added support for iOS 10.x (while maintaining support for older platforms)
Info on how to use this script with a proj...
Difference between \w and \b regular expression meta characters
...osition before a, after c, before d, and after f in "abc def"
See: http://www.regular-expressions.info/reference.html/
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How to do a recursive find/replace of a string with awk or sed?
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find /home/www \( -type d -name .git -prune \) -o -type f -print0 | xargs -0 sed -i 's/subdomainA\.example\.com/subdomainB.example.com/g'
-print0 tells find to print each of the results separated by a null character, rather than a new...
What's the best way to build a string of delimited items in Java?
While working in a Java app, I recently needed to assemble a comma-delimited list of values to pass to another web service without knowing how many elements there would be in advance. The best I could come up with off the top of my head was something like this:
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How to send POST request?
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>
Issue 12524: change httplib docs POST example - Python tracker
</t...