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How do I include a pipe | in my linux find -exec command?
...cient solution in terms of number of command invocations is the suggestion from Paul Tomblin:
find . -name "file_*" -follow -type f -print0 | xargs -0 zcat | agrep -dEOE 'grep'
... which costs one invocation of find, one invocation of xargs, a few invocations of zcat and one invocation of agrep.
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How to set Bullet colors in UL/LI html lists via CSS without using any images or span tags [duplicat
...tp://jsfiddle.net/leaverou/ytH5P/
Will work in all browsers, including IE from version 8 and up.
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Replace whole line containing a string using Sed
...nd I couldn't get it to work
I didn't realize some of my issues are coming from unescaped slashes
So here is the solution I came up with which I think should work for most cases:
function escape_slashes {
sed 's/\//\\\//g'
}
function change_line {
local OLD_LINE_PATTERN=$1; shift
lo...
How to $http Synchronous call with AngularJS
...
Not currently. If you look at the source code (from this point in time Oct 2012), you'll see that the call to XHR open is actually hard-coded to be asynchronous (the third parameter is true):
xhr.open(method, url, true);
You'd need to write your own service that did s...
assertEquals vs. assertEqual in python
...
A 3.3 update: From 26.3.7.1.1. Deprecated aliases :
For historical reasons, some of the TestCase methods had one or more aliases that are now deprecated. The following table lists the correct names along with their deprecated aliases:
...
“using namespace” in c++ headers
...* using statement in between brackets */ }, that would at least prevent it from escaping the current file.
– tjwrona1992
May 31 '19 at 4:12
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How to test equality of Swift enums with associated values
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Swift 4.1+
As @jedwidz has helpfully pointed out, from Swift 4.1 (due to SE-0185, Swift also supports synthesizing Equatable and Hashable for enums with associated values.
So if you're on Swift 4.1 or newer, the following will automatically synthesize the necessary methods ...
How do I loop through or enumerate a JavaScript object?
... that the key you get is an actual property of an object, and doesn't come from the prototype.
Here is the snippet:
var p = {
"p1": "value1",
"p2": "value2",
"p3": "value3"
};
for (var key in p) {
if (p.hasOwnProperty(key)) {
console.log(key + " -> " + p[key]...
What is the right way to check for a null string in Objective-C?
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Coming here from Flutter, and looking for the reason why a Map item's value - which is null in Dart - doesn't correspond to nil or NULL in Objective C. The reason was that it is actually NUNull null, not the NULL null. Thank You @PeterNL...
count vs length vs size in a collection
From using a number of programming languages and libraries I have noticed various terms used for the total number of elements in a collection.
...