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How to copy a collection from one database to another in MongoDB
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The best way is to do a mongodump then mongorestore. You can select the collection via:
mongodump -d some_database -c some_collection
[Optionally, zip the dump (zip some_database.zip some_database/* -r) and scp it elsewhere]
Then restore it:
mongorestore -d some_other_db -c some_or_ot...
Search for string and get count in vi editor
...ore informations)
(This way, it works perfectly with "Search for visually selected text", as described in vim-wikia tip171)
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Visual Studio 2010 isn't building before a run when there are code changes
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My problem was the wrong configuration selected! I had a separate project where each configuration is a different language, and the combo was set to one of these configurations. Just changed it to Debug_Unicode and now it is building!
– sergi...
What is the difference between 127.0.0.1 and localhost
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/etc/nsswitch.conf selects if hosts or DNS is used first for a host lookup, if nss is running.
– Mark Lakata
Feb 14 '19 at 20:16
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How do I install the OpenSSL libraries on Ubuntu?
...b to see a list of matching package names (which can help when you need to select the correct version of a package that has multiple versions or other variations available).
Bash completion is actually very useful... for example, you can also get a list of commands that apt-get supports by typing s...
How to install Maven 3 on Ubuntu 18.04/17.04/16.10/16.04 LTS/15.10/15.04/14.10/14.04 LTS/13.10/13.04
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Use this command to select the correct version of maven after it's been installed: sudo update-alternatives --config mvn
– mogsie
Nov 1 '13 at 11:46
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How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version
...t; Properties -> Java Compiler Enable project specific settings. Then select Compiler Compliance Level to 1.7, 1.6 or 1.5, build and test your app.
– Vivek Kumar Ray
Aug 16 '13 at 9:55
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How to merge specific files from Git branches
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d - do not stage this hunk nor any of the later hunks in the file
g - select a hunk to go to
/ - search for a hunk matching the given regex
j - leave this hunk undecided, see next undecided hunk
J - leave this hunk undecided, see next hunk
k - leave this hunk undecided, see previous undecided h...
DateTimePicker: pick both date and time
... change Date, then the pop-up calendar can be used whereas in case of Time selection (in the same control you are bound to use up/down keys to change values.
For example a custom format " ddddd, MMMM dd, yyyy hh:mm:ss tt " will give you a result like this : "Thursday, August 20, 2009 02:55:23 PM"....
JAXB creating context and marshallers cost
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thanks for the answer. Unfortunately I have to select only one answer :-)
– Vladimir
Sep 13 '11 at 12:23
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