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How to change the output color of echo in Linux
...
It may be more convenient to insert tput's output directly into your echo strings using command substitution:
echo "$(tput setaf 1)Red text $(tput setab 7)and white background$(tput sgr 0)"
Example
The above command produces this on Ubuntu:
Foreground & background colour commands
tp...
HTML character decoding in Objective-C / Cocoa Touch
...;number>; they are called numeric entity references. Basically, it's a string representation of the byte that should be substituted. In the case of &, it represents the character with the value of 38 in the ISO-8859-1 character encoding scheme, which is &.
The reason the ampersand...
Create and append dynamically
...amic this is is, but sometimes this might save your debugging life:
var daString="<div id=\'block\' class=\'block\'><div class=\'block-2\'></div></div>";
var daParent=document.getElementById("the ID of whatever your parent is goes in here");
daParent.innerHTML=daString;
"R...
Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
...work, and make the constructor private?
public BusinessClass
{
public string MyProperty { get; private set; }
private BusinessClass()
{
}
private BusinessClass(string myProperty)
{
MyProperty = myProperty;
}
public static BusinessClass CreateObject(string ...
Select elements by attribute
...he above will fall into the else-branch when myattr exists but is an empty string or "0". If that's a problem you should explicitly test on undefined:
if ($('#A').attr('myattr') !== undefined) {
// attribute exists
} else {
// attribute does not exist
}
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Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
... search for packages on Ubuntu/Debian based systems:
apt-cache search <string>
e.g:
apt-cache search freetype | grep dev
Redhat/CentOS/Fedora:
yum -y install freetype-devel
To search for packages on Redhat/CentOS/Fedora based systems:
yum search <string>
e.g:
yum search fr...
How do you reverse a string in place in C or C++?
How do you reverse a string in C or C++ without requiring a separate buffer to hold the reversed string?
30 Answers
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How to detect total available/free disk space on the iPhone/iPad device?
...nt, I already have enough warnings to deal with using NSInteger and format strings! 64 bits will be enough bits for sure in my lifetime and yours.
– David H
Mar 3 '14 at 14:19
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how to use python to execute a curl command
...o see this, the reason why that was happening to me is that I was giving a string as my payload instead of a dictionary object.
– tricknology
Apr 24 '15 at 22:37
1
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What is the most elegant way to remove a path from the $PATH variable in Bash?
...ultiple elements: in the first case, it adds the current dir (as the empty string; a potential security hole), in the second case it adds ` ` as a path element.
– Fred Foo
Mar 13 '11 at 17:26
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