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What does $_ mean in PowerShell?

...s is the variable for the current value in the pipe line, which is called $PSItem in Powershell 3 and newer. 1,2,3 | %{ write-host $_ } or 1,2,3 | %{ write-host $PSItem } For example in the above code the %{} block is called for every value in the array. The $_ or $PSItem variable will co...
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How might I convert a double to the nearest integer value?

...t I can see reasoning to do it up or down for statistics. Thanks for that. PS It's clear to see I'm not in statistics, finance or accounting where this kind of rounding seems to be default. – Robert Koritnik Nov 18 '11 at 11:07 ...
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PHP - Check if two arrays are equal

... PS: solution is to use array_values($a)==array_values($b)... Another usual problem is about unique values, so remember that exist array_unique(). – Peter Krauss Oct 15 '14 at 10:53 ...
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How to pass password to scp?

...ass mac w/ macports port install sshpass mac w/ brew brew install https://raw.githubusercontent.com/kadwanev/bigboybrew/master/Library/Formula/sshpass.rb share | improve this answer ...
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Shell script to send email [duplicate]

...Mutt's much more complete than mail. You can find better explanation here PS: thanks to @slhck who pointed out that my previous answer was awful. ;) share | improve this answer | ...
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How to delete every other line in Vim?

...g. Press qq. Click arrow down and press dd after. Press q. Press 10000@q PS: To go to command mode just press Escape a couple of times. share | improve this answer | follow...
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How to run SQL script in MySQL?

...is not recommended: Other users on the same host can use system tools like ps to read it in this case. – Eugen Rieck Jan 22 '18 at 16:16 1 ...
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How to find the mysql data directory from command line in windows

... You can try this- mysql> select @@datadir; PS- It works on every platform. share | improve this answer | follow | ...
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Version of Apache installed on a Debian machine

...n within. If it were my question, I'd have marked this as the answer. Perhaps the only thing I would suggest adding to your answer, is the common paths. In some environments the command might not be in the $PATH, so people trying these commands may get stuck. e.g. In my Debian enviro, I had to use $...
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Java Garbage Collection Log messages

...is subject to change in future releases. I'm not certain why there's a PSYoungGen in yours; did you change the garbage collector? share | improve this answer | follow ...