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Docker how to change repository name or rename image?
...ry all at once (and remove the old images).
If you have old images of the form:
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
old_name/image_name_1 latest abcdefghijk1 5 minutes ago 1.00GB
old_name/image_name_2...
What is the best way to detect a mobile device?
...-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|...
How can I debug my JavaScript code? [closed]
...
All modern browsers come with some form of a built-in JavaScript debugging application. The details of these will be covered on the relevant technologies web pages. My personal preference for debugging JavaScript is Firebug in Firefox. I'm not saying Firebug i...
How to check if a process id (PID) exists
...process exists"
fi
or
if [ -n "$(ps -p $PID -o pid=)" ]
In the latter form, -o pid= is an output format to display only the process ID column with no header. The quotes are necessary for non-empty string operator -n to give valid result.
...
Comparing Dates in Oracle SQL
...means:
DD numeric day of the month, 1 - 31
MM numeric month of the year, 01 - 12 ( January is 01 )
YYYY 4 digit year - in my opinion this is always better than a 2 digit year YY as there is no confusion with what century you're referring to.
HH24 hour of the day, 0 - 23
MI minute of the hour, 0 - ...
Printf width specifier to maintain precision of floating-point value
...= 1.0/7.0;
printf("%.*e\n", Digs, OneSeventh);
// 1.428571428571428492127e-01
But let's dig deeper ...
Mathematically, the answer is "0.142857 142857 142857 ...", but we are using finite precision floating point numbers.
Let's assume IEEE 754 double-precision binary.
So the OneSeventh = 1.0/7....
Should I commit or rollback a read transaction?
...on implicit rollback - while perhaps technically equivalent - is just poor form.
If that hasn't convinced you, just imagine the next guy who inserts an update statement in the middle of your code, and has to track down the implicit rollback that occurs and removes his data.
...
Why is there no logical xor in JavaScript?
...
Convert values into Boolean form then take bitwise XOR.
It will help with non-boolean values as well.
Boolean(a) ^ Boolean(b)
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How can I convert a std::string to int?
...stdlib/atoi "The string can contain additional characters after those that form the integral number, which are ignored and have no effect on the behavior of this function."
– Tin Wizard
Jul 25 '16 at 20:22
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GitHub Error Message - Permission denied (publickey)
...e for the .ssh directory. Using ssh -vT git@github.com provides a lot of information as to why it is not working.
– Christophe
Jul 2 '16 at 9:07
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