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Count occurrences of a char in a string using Bash
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I would use the following awk command:
string="text,text,text,text"
char=","
awk -F"${char}" '{print NF-1}' <<< "${string}"
I'm splitting the string by $char and print the number of resulting fields minus 1.
If your shell does not support the &lt...
How to find memory leak in a C++ code/project?
...nstructions
Things You'll Need
Proficiency in C++
C++ compiler
Debugger and other investigative software tools
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Understand the operator basics. The C++ operator new allocates heap memory. The delete operator frees heap memory. For every new, you should use a delete so that you free the same m...
Get the IP address of the machine
...) will let you do the same thing easily, it works fine for me on os x 10.5 and should be the same below.
I've done a quick example below which will print all of the machine's IPv4 address, (you should also check the getifaddrs was successful ie returns 0).
I've updated it show IPv6 addresses too.
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How to parse a CSV file using PHP [duplicate]
... CSV file
http://php.net/manual/en/function.fgetcsv.php
$row = 1;
if (($handle = fopen("test.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
echo "<p> $num fields in line $row: <br /></p>\n";
$row++;
for ($...
What does a space mean in a CSS selector? i.e. What is the difference between .classA.classB and .cl
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.classA.classB refers to an element that has both classes A and B (class="classA classB"); whereas .classA .classB refers to an element with class="classB" descended from an element with class="classA".
Edit: Spec for reference: Attribute Selectors (See section 5.8.3 Class Selectors)...
prevent property from being serialized in web API
I'm using an MVC 4 web API and asp.net web forms 4.0 to build a rest API. It's working great:
11 Answers
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Sass combining parent using ampersand (&) with type selectors
...t to .item a.item for some reason. I tried doing a#{&} on it's own too and still same result.
– jaminroe
Nov 11 '15 at 16:54
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Why does C++11 not support designated initializer lists as C99? [closed]
... constructor. This is the sort of abstraction C++ promotes.
On the other hand the designated initializers feature is more about exposing and making members easy to access directly in client code. This leads to things like having a person of age 18 (years?) but with height and weight of zero.
In ...
Check if string ends with one of the strings from a list
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just a note, endswith accepts tuple only for python 2.5 and above
– Akash Singh
Dec 31 '18 at 9:32
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Use rvmrc or ruby-version file to set a project gemset with RVM?
I use RVM, the Ruby Version Manager to specify a Ruby version and a set of gems for each of my Rails projects.
5 Answers
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