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How do I use shell variables in an awk script?
...ss external shell variables to an awk script, but I'm confused about ' and " .
7 Answers
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How do I escape a single quote in SQL Server?
...you're using an ORM it will do it for you. If you're building your SQL commands manually you'll want to use the language's "prepared statements" functionality. If you're doing it in Management Studio then you'll have to do the replace.
– Cᴏʀʏ
Feb 15 '14 at ...
How to stop Visual Studio from “always” checking out solution files?
...of these. I removed it, checked in the solution, closed then re-opened it, and no more automatic check out.
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Find which version of package is installed with pip
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As of pip 1.3, there is a pip show command.
$ pip show Jinja2
---
Name: Jinja2
Version: 2.7.3
Location: /path/to/virtualenv/lib/python2.7/site-packages
Requires: markupsafe
In older versions, pip freeze and grep should do the job nicely.
$ pip freeze | grep Ji...
How to tell if a tag failed to load
I'm dynamically adding <script> tags to a page's <head> , and I'd like to be able to tell whether the loading failed in some way -- a 404, a script error in the loaded script, whatever.
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Can I change the height of an image in CSS :before/:after pseudo-elements?
...djusting the background-size is permitted. You still need to specify width and height of the block, however.
.pdflink:after {
background-image: url('/images/pdf.png');
background-size: 10px 20px;
display: inline-block;
width: 10px;
height: 20px;
content:"";
}
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iOS: Compare two dates
I have a NSDate that I must compare with other two NSDate and I try with NSOrderAscending and NSOrderDescending but if my date is equal at other two dates?
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How to get Sinatra to auto-reload the file after each change?
...load on changes?"
First off, in-process code reloading in Ruby is hard and having a
solution that works for every scenario is technically impossible.
Which is why we recommend you to do out-of-process reloading.
First you need to install rerun if you haven’t already:
$ gem instal...
Is 1.0 a valid output from std::generate_canonical?
I always thought random numbers would lie between zero and one, without 1 , i.e. they are numbers from the half-open interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this.
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Gdb print to file instead of stdout
I am running gdb and want to examine one of those unfortunate god objects. It takes many pages (and I have a 24" monitor turned sideways!) to see the whole thing. For ease of use, I'd like gdb to print the object to a file instead of the screen so that I can open it in vi and move around with ease...