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Using sed, how do you print the first 'N' characters of a line?
...e first 100 characters:
cat file |colrm 101
It's been around for years and is in most linux's and bsd's (freebsd for sure), usually by default. I can't remember ever having to type apt-get install colrm.
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looping through an NSMutableDictionary
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A standard way would look like this
for(id key in myDict) {
id value = [myDict objectForKey:key];
[value doStuff];
}
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How to add item to the beginning of List?
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Since .NET 4.7.1, you can use Append() and Prepend(). Check this answer
– aloisdg moving to codidact.com
Jan 8 at 10:13
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Pass array to mvc Action via AJAX
...g to pass an array (or IEnumerable) of ints from via AJAX to an MVC action and I need a little help.
11 Answers
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How does one output bold text in Bash?
...ld=$(tput bold)
normal=$(tput sgr0)
then you can use the variables $bold and $normal to format things:
echo "this is ${bold}bold${normal} but this isn't"
gives
this is bold but this isn't
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Haskell: Converting Int to String
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Note that some organizations/standards strongly discourage the use of "show" because of its extreme polymorphism. A type-specific function (or, worst case, wrapper around show) would be helpful.
– Jon Watte
Mar 27 '15...
Save plot to image file instead of displaying it using Matplotlib
I am writing a quick-and-dirty script to generate plots on the fly. I am using the code below (from Matplotlib documentation) as a starting point:
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Calculate total seconds in PHP DateInterval
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+1: nice and clean! Note that getTimestamp() method is available in PHP >= 5.3.0.
– Sk8erPeter
Jun 19 '12 at 11:43
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LINQ To Entities does not recognize the method Last. Really?
...mes down to the fact that eventually it has to translate that query to SQL and SQL has a SELECT TOP (in T-SQL) but not a SELECT BOTTOM (no such thing).
There is an easy way around it though, just order descending and then do a First(), which is what you did.
EDIT:
Other providers will possibly hav...
Android: upgrading DB version and adding new table
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1. About onCreate() and onUpgrade()
onCreate(..) is called whenever the app is freshly installed. onUpgrade is called whenever the app is upgraded and launched and the database version is not the same.
2. Incrementing the db version
You ne...