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How to have the cp command create any necessary folders for copying a file to a destination [duplica
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283
To expand upon Christian's answer, the only reliable way to do this would be to combine mkdir ...
Linux command (like cat) to read a specified quantity of characters
...ytes. For example, to get the second 100 bytes from a file, read the first 200 with head and use tail to get the last 100:
head -c 200 file | tail -c 100
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How to pass an array within a query string?
...ch framework-specific. Some examples:
Query string:
?list_a=1&list_a=2&list_a=3&list_b[]=1&list_b[]=2&list_b[]=3&list_c=1,2,3
Rails:
"list_a": "3",
"list_b":[
"1",
"2",
"3"
],
"list_c": "1,2,3"
Angular:
"list_a": [
"1",
"2",
"3"
],
"li...
How to get URL of current page in PHP [duplicate]
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283
$_SERVER['REQUEST_URI']
For more details on what info is available in the $_SERVER array, se...
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
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23 Answers
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(Built-in) way in JavaScript to check if a string is a valid number
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Difference between two dates in MySQL
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SELECT TIMEDIFF('2007-12-31 10:02:00','2007-12-30 12:01:01');
-- result: 22:00:59, the difference in HH:MM:SS format
SELECT TIMESTAMPDIFF(SECOND,'2007-12-30 12:01:01','2007-12-31 10:02:00');
-- result: 79259 the difference in seconds
So...
Convert pem key to ssh-rsa format
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132
No need to compile stuff. You can do the same with ssh-keygen:
ssh-keygen -f pub1key.pub -i
w...
Wait for page load in Selenium
How do you make Selenium 2.0 wait for the page to load?
47 Answers
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What is SYSNAME data type in SQL Server?
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sysname is a built in datatype limited to 128 Unicode characters that, IIRC, is used primarily to store object names when creating scripts. Its value cannot be NULL
It is basically the same as using nvarchar(128) NOT NULL
EDIT
As mentioned by @Jim in the comments, ...