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Where can I set environment variables that crontab will use?
...environment -- not done by cron (usually switches HOME)
. $HOME/.cronfile
base=`basename $0`
cmd=${REAL_HOME:-/real/home}/bin/$base
if [ ! -x $cmd ]
then cmd=${HOME}/bin/$base
fi
exec $cmd ${@:+"$@"}
(Written using an older coding standard - nowadays, I'd use a shebang '#!' at the start.)
The ...
Why does Python use 'magic methods'?
...
64
AFAIK, len is special in this respect and has historical roots.
Here's a quote from the FAQ:
...
PostgreSQL error 'Could not connect to server: No such file or directory'
...
From brew info postgres: ARCHFLAGS="-arch x86_64" gem install pg
– wrdevos
May 27 '13 at 14:52
1
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How can I recover the return value of a function passed to multiprocessing.Process?
...tester
if __name__ == "__main__":
mp = Multiprocessor()
num_proc = 64
for _ in range(num_proc): # queue up multiple tasks running `sum`
mp.run(sum, [1, 2, 3, 4, 5])
ret = mp.wait() # get all results
print(ret)
assert len(ret) == num_proc and all(r == 15 for r in ret)
...
Javascript Confirm popup Yes, No button instead of OK and Cancel
...le in IE.
I would suggest using a Javascript library that can build a DOM-based dialog instead. Try Jquery UI: http://jqueryui.com/
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Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?
..." OpenJDK Runtime Environment (IcedTea6 1.10.6) (fedora-63.1.10.6.fc15-x86_64) OpenJDK 64-Bit Server VM (build 20.0-b11, mixed mode)
– Samuel Audet
May 30 '12 at 3:34
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Comparing mongoose _id and strings
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64
ObjectIDs are objects so if you just compare them with == you're comparing their references. I...
How to get current date in jquery?
...String();
var mm = (this.getMonth()+1).toString(); // getMonth() is zero-based
var dd = this.getDate().toString();
return yyyy + "/" + (mm[1]?mm:"0"+mm[0]) + "/" + (dd[1]?dd:"0"+dd[0]); // padding
};
var date = new Date();
console.log( date.yyyymmdd() ); // Assuming you have an open console
...
Accessing Object Memory Address
... cs95
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answered Sep 23 '08 at 14:41
Nick JohnsonNick Johnson
98.3k...
Invoke a callback at the end of a transition
...#myid").transition().style("opacity","0").each("end", myCallback);
This demo uses the "end" event to chain many transitions in order.
The donut example that ships with D3 also uses this to chain together multiple transitions.
Here's my own demo that changes the style of elements at the start and ...