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What is the difference between allprojects and subprojects
...he "allprojects" section and the "subprojects" one? Just the parent directory? Does anyone use both? If so, do you have general rules that determines what typically is put in each one?
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In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
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@NotNull: The CharSequence, Collection, Map or Array object is not null, but can be empty.
@NotEmpty: The CharSequence, Collection, Map or Array object is not null and size > 0.
@NotBlank: The string is not null and the trimmed length is greater than zero.
To he...
input type=“text” vs input type=“search” in HTML5
I'm new to HTML5 as begun to work with HTML5's new form input fields. When I'm working with form input fields, especially <input type="text" /> and <input type="search" /> IMO there wasn't any difference in all major browser including Safari, Chrome, Firefox and Opera. And the search...
How do I reload .bashrc without logging out and back in?
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You just have to enter the command:
source ~/.bashrc
or you can use the shorter version of the command:
. ~/.bashrc
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How do I find out my python path using python?
How do I find out which directories are listed in my system’s PYTHONPATH variable, from within a Python script (or the interactive shell)?
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Kiosk mode in Android
... process of evaluating if and how a CF .NET enterprise application can be ported to run on Android devices. The application on Windows Mobile phones are run in kiosk mode where the application autostart in fullscreen-mode after booting and with the users unable to accidentally or willingly access an...
Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
...ok and am enjoying it. Sometimes, I write buggy code that takes massive memory requirements or has an infinite loop. I find the "interrupt kernel" option sluggish or unreliable, and sometimes I have to restart the kernel, losing everything in memory.
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How do I get the opposite (negation) of a Boolean in Python?
For the following sample:
7 Answers
7
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Turning multi-line string into single comma-separated
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You can use awk and sed:
awk -vORS=, '{ print $2 }' file.txt | sed 's/,$/\n/'
Or if you want to use a pipe:
echo "data" | awk -vORS=, '{ print $2 }' | sed 's/,$/\n/'
To break it down:
awk is great at handling data broken down into fields
-vORS=, set...
Why would one use the Publish/Subscribe pattern (in JS/jQuery)?
... a hard time getting to grips with why one would use this pattern over 'normal' JavaScript/jQuery.
7 Answers
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