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RegEx to parse or validate Base64 data
...t base64, chances are you are not interested in empty strings. At least i know i am not.
– njzk2
Aug 22 '11 at 13:19
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type object 'datetime.datetime' has no attribute 'datetime'
...python 3.3
from datetime import datetime, timedelta
futuredate = datetime.now() + timedelta(days=10)
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How can I join elements of an array in Bash?
...when the delimiter starts with a hyphen (and maybe others I can't think of now). You can of course fix these (replace backslashes by double backslashes and use printf -- "$d%s"), but at some point you'll feel that you're fighting against the shell instead of working with it. That's why, in my answer...
Similar to jQuery .closest() but traversing descendants?
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Excellent answer. I'd be interested to know whether $('#foo').find('.whatever').first(); is "breadth-first" or "depth-first"
– Colin
Sep 9 '14 at 12:34
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How do I syntax check a Bash script without running it?
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Great tip; on OSX you can now also install the shellcheck.net CLI, shellcheck, via Homebrew: brew install shellcheck.
– mklement0
Jun 12 '15 at 2:20
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Node package ( Grunt ) installed but not available
... grunt-cli ).
You can establish that's working by typing grunt --version
Now you can install the current version of Grunt local to your project. So from your project's location...
npm install grunt --save-dev
The save-dev switch isn't strictly necessary but is a good idea because it will mark g...
What does the question mark and the colon (?: ternary operator) mean in objective-c?
... (defo my favourite) but never knew what it's called. the big question has now been answered. Thanks
– Thang Do
Nov 10 '15 at 7:50
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gem install: Failed to build gem native extension (can't find header files)
... Fedora 14 and I have MySQL and MySQL server 5.1.42 installed and running.
Now I tried to do this as root user:
18 Answers
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How to extract one column of a csv file
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This should be the accepted answer. This tool knows how to deal with CSV files, well beyond treating a comma as a field separator. To extract 2nd column, "csvtool col 2 input.csv"
– Vladislavs Dovgalecs
Oct 28 '16 at 2:52
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Favorite (Clever) Defensive Programming Best Practices [closed]
...lever defensive techniques other than those that 70%+ of us here already know about. So now it is time to dig deep into your bag of tricks.
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