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What does $_ mean in PowerShell?

...dItem | Add-Member -Type NoteProperty -Name Bar -Value $_.Name -PassThru | Select Bar ... Well, it can work if you have a $_ in the scope where you're executing that pipeline. But that's very different from what you usually mean when trying to write something like that. – Joey ...
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How to format all Java files in an Eclipse project at one time?

... Right click on the project root and select Source -> Format. This should work for at least version 3.8.1. and above. If the above does not work, you're probably using an older Eclipse-version. In such case you can select your Source Folders by clicking on t...
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Selecting the first “n” items with jQuery

With Jquery, I need to select just the first "n" items from the page, for example the first 20 links instead of selecting all of them with the usual ...
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fs: how do I locate a parent folder?

...ts need to be 6 characters minimum (stupid rule if you ask me, prevents us from editing small typos like this). – user1767586 Dec 29 '14 at 20:21 1 ...
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Correct way to define Python source code encoding

...swer this question. The reputation requirement helps protect this question from spam and non-answer activity. Not the answer you're looking for? Browse other questions t...
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Quit and restart a clean R session from within R?

... I believe opening a "clean R session" requires that 1-Data from current session is removed; 2-Packages from current session are unloaded. .rs.restartR() does not seem to do either of these things on my machine.. – steadyfish May 6 '16 at 13:58 ...
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Find the host name and port using PSQL commands

... SELECT * FROM pg_settings WHERE name = 'port'; share | improve this answer | follow ...
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Opening a folder in explorer and selecting a file

I'm trying to open a folder in explorer with a file selected. 11 Answers 11 ...
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MySQL error 1449: The user specified as a definer does not exist

...finer for views Run this SQL to generate the necessary ALTER statements SELECT CONCAT("ALTER DEFINER=`youruser`@`host` VIEW ", table_name, " AS ", view_definition, ";") FROM information_schema.views WHERE table_schema='your-database-name'; Copy and run the ALTER statements How to change the...
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Delete with Join in MySQL

... Since you are selecting multiple tables, The table to delete from is no longer unambiguous. You need to select: DELETE posts FROM posts INNER JOIN projects ON projects.project_id = posts.project_id WHERE projects.client_id = :client_id ...