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Simple logical operators in Bash
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What you've written actually almost works (it would work if all the variables were numbers), but it's not an idiomatic way at all.
(…) parentheses indicate a subshell. What's inside them isn't an expression like in many other languages. It's a l...
How can I make one python file run another? [duplicate]
...retched over lots of files. Highly recommended. Note that if your file is called file.py, your import should not include the .py extension at the end.
The infamous (and unsafe) exec command: Insecure, hacky, usually the wrong answer. Avoid where possible.
execfile('file.py') in Python 2
exec(open(...
Transferring an app to another Firebase account
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I recently shifted ownership of one of my projects to another account. All you have to do is:
Go to your Firebase console, and select the project you want to shift.
Select the cog icon besides the project name on top right.
Select Permissions from the flyout.
Select Advanced permission setting...
What components are MVC in JSF MVC framework?
...e as below:
M - Entity
V - Facelets/JSP page
C - Managed bean
In the smaller client picture, the developer V is in turn dividable as below:
M - JSF component tree
V - Rendered HTML output
C - Client (webbrowser)
In the yet smaller JavaScript picture, the client V is in turn dividable as below:...
grunt: command not found when running from terminal
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I'm guessing you used Brew to install Node, so the guide here might be helpful http://madebyhoundstooth.com/blog/install-node-with-homebrew-on-os-x/.
You need to ensure that the npm/bin is in your path as it describes export PATH="/usr/local/share/npm/bin:$...
How to use enum values in f:selectItem(s)
...list was large? And could I do this better? And is it possible to automatically "select" the item that the question have?
4...
Manual deployment vs. Amazon Elastic Beanstalk
What are the advantages we get by using Elastic Beanstalk over maually creating EC2 instance and setting up tomcat server and deploy etc for a typical java web applicaion. Are load balancing, Monitoring and autoscaling the only advantages?
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npm command to uninstall or prune unused packages in Node.js
Is there a way to simply uninstall all unused (undeclared) dependencies from a Node.js project (ones that are no longer defined in my package.json .) When I update my application I like to have the unreferenced packages removed automatically.
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What's the best way to learn LISP? [closed]
...used what I learned about LISP, but it made me a much better programmer in all other languages.
– Robert K
Dec 29 '08 at 21:40
1
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mongodb, replicates and error: { “$err” : “not master and slaveOk=false”, “code” : 13435 }
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You have to set "slave okay" mode to let the mongo shell know that you're allowing reads from a secondary. This is to protect you and your applications from performing eventually consistent reads by accident. You can do this in the shell with:
rs.slaveOk()
After that you can query normally from ...