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How to extract text from a string using sed?
...ing line), use a substitution.
sed -n 's/.*\([0-9][0-9]*G[0-9][0-9]*\).*/\1/p'
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Understanding the ngRepeat 'track by' expression
... your data source has duplicate identifiers
e.g.: $scope.dataSource: [{id:1,name:'one'}, {id:1,name:'one too'}, {id:2,name:'two'}]
You can't iterate this collection while using 'id' as identifier (duplicate id:1).
WON'T WORK:
<element ng-repeat="item.id as item.name for item in dataSource">...
How can I wrap text to some length in Vim?
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179
You can actually do two things:
Let vim format (i.e.change) your text to have shorter lines,...
Find and copy files
... of the arguments to cp reversed:
find /home/shantanu/processed/ -name '*2011*.xml' -exec cp "{}" /home/shantanu/tosend \;
Please, note: the find command use {} as placeholder for matched file.
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Postgres dump of only parts of tables for a dev snapshot
...hots of this database that are functionally equivalent, but which are only 10 or 20 gigs in size.
3 Answers
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Convert list of dictionaries to a pandas DataFrame
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1044
Supposing d is your list of dicts, simply:
df = pd.DataFrame(d)
Note: this does not work wit...
Diff two tabs in Vim
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189
I suggest opening the second file in the same tab instead of a new one.
Here's what I usually...
MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
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192
Beginning with MongoDB 2.4, it's no longer necessary to rely on a unique index (or any other w...
Conditional HTML Attributes using Razor MVC3
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You didn't hear it from me, the PM for Razor, but in Razor 2 (Web Pages 2 and MVC 4) we'll hav...
Reference — What does this symbol mean in PHP?
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Incrementing / Decrementing Operators
++ increment operator
-- decrement operator
Example ...