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Check if an apt-get package is installed and then install it if it's not on Linux

... 317 To check if packagename was installed, type: dpkg -s <packagename> You can also use dp...
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how to restart only certain processes using supervisorctl?

I'm running a few processes using supervisord, named process1, process2, ..., process8. If I want to restart process{1-4}, how can I do that with supervisorctl? ...
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Compress files while reading data from STDIN

... 185 Yes, use gzip for this. The best way is to read data as input and redirect the compressed to o...
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how do i do an insert with DATETIME now inside of SQL server mgmt studio

... 176 Use CURRENT_TIMESTAMP (or GETDATE() on archaic versions of SQL Server). ...
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What really happens in a try { return x; } finally { x = null; } statement?

... .method private hidebysig static int32 Test() cil managed { .maxstack 1 .locals init ( [0] int32 CS$1$0000) L_0000: call int32 Program::SomeNumber() L_0005: stloc.0 L_0006: leave.s L_000e L_0008: call void Program::Foo() L_000d: endfinally L_000e: ldloc.0 ...
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Get a list of all the files in a directory (recursive)

... 213 This code works for me: import groovy.io.FileType def list = [] def dir = new File("path_to_...
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Speed up the loop operation in R

...on). The data.frame has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the runtime. 1...
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Variable is accessed within inner class. Needs to be declared final

... 133 If you don't want to make it final, you can always just make it a global variable. ...
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How to catch SQLServer timeout exceptions

... 158 To check for a timeout, I believe you check the value of ex.Number. If it is -2, then you have...
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How to create an array of 20 random bytes?

... answered Apr 15 '11 at 23:14 maericsmaerics 126k3434 gold badges234234 silver badges268268 bronze badges ...