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How to grep and replace
...s to use find and then pass it through sed.
find /path/to/files -type f -exec sed -i 's/oldstring/new string/g' {} \;
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How to compare binary files to check if they are the same?
...t is the easiest way (using a graphical tool or command line on Ubuntu Linux) to know if two binary files are the same or not (except for the time stamps)? I do not need to actually extract the difference. I just need to know whether they are the same or not.
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Android emulator and virtualbox cannot run at same time
Whenever I have Virtualbox running, I cannot start an Android emulator image (and vice versa). The error message in the AVD manager is
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_=> what does this underscore mean in Lambda expressions?
What does an lambda expression like _=> expr mean?
5 Answers
5
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Is there a way to auto expand objects in Chrome Dev Tools?
EVERY SINGLE TIME I view an object in the console I am going to want to expand it, so it gets tiresome to have to click the arrow to do this EVERY SINGLE TIME :) Is there a shortcut or setting to have this done automatically?
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How can I get all constants of a type by reflection?
... SO important when one needs to learn from it. i wish every one with your experience would do as you did here .
– LoneXcoder
Dec 10 '12 at 8:49
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Is there a way to provide named parameters in a function call in JavaScript?
...l arguments and the last argument is an object with named arguments.
For example:
var parameterfy = (function() {
var pattern = /function[^(]*\(([^)]*)\)/;
return function(func) {
// fails horribly for parameterless functions ;)
var args = func.toString().match(pattern)[1]...
How to keep the spaces at the end and/or at the beginning of a String?
...g or the end of your string. For these cases, neither escaping with \, nor xml:space attribute helps. You must use HTML entity   for a whitespace.
Use   for non-breakable whitespace.
Use   for regular space.
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Recursive search and replace in text files on Mac and Linux
In the linux shell, the following command will recursively search and replace all instances of 'this' with 'that' (I don't have a Linux shell in front of me, but it should do).
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Calling a Method From a String With the Method's Name in Ruby
... 2, 3]
a.send("length")
# or
a.public_send("length")
which returns 3 as expected
or for a module function
FileUtils.send('pwd')
# or
FileUtils.public_send(:pwd)
and a locally defined method
def load()
puts "load() function was executed."
end
send('load')
# or
public_send('load')
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