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Running a cron every 30 seconds
...sorted, the following script should work:
#!/bin/env bash
# Debug code to start on minute boundary and to
# gradually increase maximum payload duration to
# see what happens when the payload exceeds 30 seconds.
((maxtime = 20))
while [[ "$(date +%S)" != "00" ]]; do true; done
while true; do
#...
Using a piano keyboard as a computer keyboard [closed]
...as well. That may well be sufficient for your purposes — it's where I'd start, because the device driver route is going to be awkward and you'd probably have to use a different language for it than Java. (I'm a big fan of Java, but the interfaces that operating systems use to talk to device drive...
pandas resample documentation
...nd frequency
CBM custom business month end frequency
MS month start frequency
SMS semi-month start frequency (1st and 15th)
BMS business month start frequency
CBMS custom business month start frequency
Q quarter end frequency
BQ business quarter endfreque...
Using 'starts with' selector on individual class names
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Classes that start with "apple-" plus classes that contain " apple-"
$("div[class^='apple-'],div[class*=' apple-']")
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improve t...
How do I get started with Node.js [closed]
Are there any good resources to get started with Node.JS? Any good tutorials, blogs or books?
3 Answers
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How do I execute code AFTER a form has loaded?
...ic and it will hold and refresh the form to fully loaded before your logic start running
– Aylian Craspa
Aug 11 '16 at 20:18
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show 6 more c...
Regular Expression to match string starting with “stop”
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If you want to match anything after a word stop an not only at the start of the line you may use : \bstop.*\b - word followed by line
Or if you want to match the word in the string use \bstop[a-zA-Z]* - only the words starting with stop
Or the start of lines with stop ^stop[a-zA-Z]* fo...
How do you detect Credit card type based on number?
...low: Credit for original expressions
Visa: ^4[0-9]{6,}$ Visa card numbers start with a 4.
MasterCard: ^5[1-5][0-9]{5,}|222[1-9][0-9]{3,}|22[3-9][0-9]{4,}|2[3-6][0-9]{5,}|27[01][0-9]{4,}|2720[0-9]{3,}$ Before 2016, MasterCard numbers start with the numbers 51 through 55, but this will only detect M...
How to check if a service is running on Android?
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@Pacerier, the solution you reference requires starting the service and I think the best flexible solution should allow you to check whether a service is running without starting it.
– Tom
Apr 4 '12 at 16:23
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How can I stop redis-server?
I apparently have a redis-server instance running because when I try to start a new server by entering redis-server , I'm greeted with the following:
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