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Where to define custo<em>mem> error types in Ruby and/or Rails?
Is there a best practice for defining custo<em>mem> error types in a Ruby library (ge<em>mem>) or Ruby on Rails application? Specifically:
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<em>mem>kdir's “-p” option
So this doesn't see<em>mem> like a terribly co<em>mem>plicated question I have, but it's one I can't find the answer to. I'<em>mem> confused about what the -p option does in Unix. I used it for a lab assign<em>mem>ent while creating a subdirectory and then another subdirectory within that one. It looked like this:
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Define <em>mem>ake variable at rule execution ti<em>mem>e
In <em>mem>y GNU<em>mem>akefile, I would like to have a rule that uses a te<em>mem>porary directory. For exa<em>mem>ple:
4 Answers
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How to un-escape a backslash-escaped string?
... Is there an easy way, in Python, to unescape the string? I could, for exa<em>mem>ple, do:
4 Answers
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_=> what does this underscore <em>mem>ean in La<em>mem>bda expressions?
What does an la<em>mem>bda expression like _=&a<em>mem>p;gt; expr <em>mem>ean?
5 Answers
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Git - working on wrong branch - how to copy changes to existing topic branch
I've been working on a project, but unfortunately, I forgot to switch to <em>mem>y branch, and as such have been working on <em>mem>aster
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Difference between 'python setup.py install' and 'pip install'
I have an external package I want to install into <em>mem>y python virtualenv fro<em>mem> a tar file.
What is the best way to install the package?
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What is the difference between the $parse, $interpolate and $co<em>mem>pile services?
What is the difference between $parse , $interpolate and $co<em>mem>pile services?
For <em>mem>e they all do the sa<em>mem>e thing: take te<em>mem>plate and co<em>mem>pile it to te<em>mem>plate-function.
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What is a callback URL in relation to an API?
I've been scouring the net, and can't see<em>mem> to wrap <em>mem>y head around the idea of a callback URL. In <em>mem>y case I have a few callback URLs that I have to define <em>mem>yself. A popular one is a "default callback URL". What is this exactly? Can you give an exa<em>mem>ple in plain english?
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How to write a cron that will run a script every day at <em>mem>idnight?
...what crontab is and how to use it on Ubuntu. Your crontab line will look so<em>mem>ething like this:
00 00 * * * ruby path/to/your/script.rb
(00 00 indicates <em>mem>idnight--0 <em>mem>inutes and 0 hours--and the *s <em>mem>ean every day of every <em>mem>onth.)
Syntax:
<em>mem><em>mem> hh dd <em>mem>t wd co<em>mem><em>mem>and
<em>mem><em>mem> <em>mem>inute 0-59
hh hour 0-23
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