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Running a cron job at 2:30 AM everyday
...mmand
Crontab Format:
MIN HOUR DOM MON DOW CMD
Format Meanings and Allowed Value:
MIN Minute field 0 to 59
HOUR Hour field 0 to 23
DOM Day of Month 1-31
MON Month field 1-12
DOW Day Of Week 0-6
CMD Command Any command to be executed.
Restart cro...
Trying to embed newline in a variable in bash [duplicate]
...ar ) # Do not use double quotes "$var"
echo "$p"
Output is the same for all
a
b
c
Special thanks to contributors of this answer: kevinf, Gordon Davisson, l0b0, Dolda2000 and tripleee.
EDIT
See also BinaryZebra's answer providing many details.
Abhijeet Rastogi's answer and Dimitry's answer...
What Makes a Method Thread-safe? What are the rules?
Are there overall rules/guidelines for what makes a method thread-safe? I understand that there are probably a million one-off situations, but what about in general? Is it this simple?
...
Actual meaning of 'shell=True' in subprocess
I am calling different processes with the subprocess module. However, I have a question.
5 Answers
...
How do I measure execution time of a command on the Windows command line?
... keyname.
-a specifies that timeit should display average of all timings
for the specified key.
-i specifies to ignore non-zero return codes from program
-d specifies to show detail for average
-s specifies to suppress system w...
What is “vectorization”?
...vec" instructions, and even some ARM chips have a vector instruction set, called NEON.
"Vectorization" (simplified) is the process of rewriting a loop so that instead of processing a single element of an array N times, it processes (say) 4 elements of the array simultaneously N/4 times.
(I chose 4...
Use of .apply() with 'new' operator. Is this possible?
...CMAScript5's Function.prototype.bind things get pretty clean:
function newCall(Cls) {
return new (Function.prototype.bind.apply(Cls, arguments));
// or even
// return new (Cls.bind.apply(Cls, arguments));
// if you know that Cls.bind has not been overwritten
}
It can be used as foll...
jQuery posting valid json in request body
...query string when sending requests, but setting processData:false should allow me to send actual JSON in the body. Unfortunately I'm having a hard time determining first, if this is happening and 2nd what the object looks like that is being sent to the server. All I know is that the server is no...
Chrome can't load web worker
...to make a universal solution is this:
function worker_function() {
// all code here
}
// This is in case of normal worker start
// "window" is not defined in web worker
// so if you load this file directly using `new Worker`
// the worker code will still execute properly
if(window!=self)
work...
How to do a newline in output
How do I make \n actually work in my output? At the moment it just writes it all in 1 long block. Thanks for any help
4 A...