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Run cron job only if it isn't already running
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#!/bin/sh
if ps -ef | grep -v grep | grep doctype.php ; then
exit 0
else
/home/user/bin/doctype.php >> /home/user/bin/spooler.log &
#mailing program
/home/user/bin/simplemail.php "Print spooler was not running... Restarted."
exit 0
fi
It runs ev...
Is there a naming convention for MySQL?
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108
I would say that first and foremost: be consistent.
I reckon you are almost there with the con...
Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?
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+50
I use javascript:void(0).
Three reasons. Encouraging the use of # amongst a team of developers inevitably leads to some using the ret...
Why use symbols as hash keys in Ruby?
...shed keys" against each other.
Long answer:
https://web.archive.org/web/20180709094450/http://www.reactive.io/tips/2009/01/11/the-difference-between-ruby-symbols-and-strings
http://www.randomhacks.net.s3-website-us-east-1.amazonaws.com/2007/01/20/13-ways-of-looking-at-a-ruby-symbol/
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Why does String.valueOf(null) throw a NullPointerException?
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203
The issue is that String.valueOf method is overloaded:
String.valueOf(Object)
String.valueOf(...
Linq Syntax - Selecting multiple columns
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edited Jul 21 '11 at 7:01
answered Jul 21 '11 at 6:47
Iv...
Superscript in markdown (Github flavored)?
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edited Feb 20 at 19:16
answered Mar 1 '13 at 11:25
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Nginx not picking up site in sites-enabled?
After over 10 hours of research I have not figured out why this doesn't work! I am trying to move my localhost to my sites-enabled folder which is in /etc/nginx/sites-enabled/default.
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Should I use encoding declaration in Python 3?
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28
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e.printStackTrace equivalent in python
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10
If you're working inside some kind of container such as Jython and therefore cannot just print the trace, you can format_exc instead to get ...