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awk without printing newline
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awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print will insert a newline by default. You dont want that to happen, hence use printf instead.
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How does libuv compare to Boost/ASIO?
...h as thread and synchronization abstractions, synchronous and asynchronous file system operations, process management, etc. In contrast, Boost.Asio's original networking focus surfaces, as it provides a richer set of network related capabilities, such as ICMP, SSL, synchronous blocking and non-bloc...
Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...s have a limit of 2000 threads per process?).
On Windows using unbuffered file I/O means that writes must be of a size which is a multiple of the page size. I have not tested it, but it sounds like this could also affect write performance positively for buffered synchronous and asynchronous writes....
How do I install Python packages on Windows?
... Step 1 - Get python recognized as a command Step 2 - Run the setup.py file
– Chris Hayes
May 31 '11 at 20:49
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Ruby off the rails
...ration - Built several DSLs to generate C++/Java/C# code from single input files
Build Support
scripts to generate Makefiles for unix from Visual Studio Project Files
scripts for building projects and formatting the output for Cruise Control
scripts for running our unit tests and formatting the ou...
How to add a WiX custom action that happens only on uninstall (via MSI)?
...cuteSequence>:
<InstallExecuteSequence>
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<Custom Action="FileCleaner" After='InstallFinalize'>
Installed AND NOT UPGRADINGPRODUCTCODE</Custom>
Then you will also have to define your Action under <Product>:
<Product>
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<CustomAction Id='File...
upstream sent too big header while reading response header from upstream
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Add the following to your conf file
fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;
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ASP.NET: HTTP Error 500.19 – Internal Server Error 0x8007000d
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Had the same issue, spent ages looking at "corrupt" XML files until I stumbled across this comment mentioning the URL rewriting module. That was enough to trigger my recollection of solving this exact same thing a few months ago! (I'm writing it down this time) Thanks!
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CSS content property: is it possible to insert HTML instead of Text?
...wer that you cannot add arbitrary markup - you have to specify an external file via url() instead, as with any other image.
– BoltClock♦
Oct 10 '13 at 15:59
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...oots.
Otherwise, insert he SD card on your host, and create a magic empty file named ssh file in the boot/ partition.
On Ubuntu hosts, it gets mounted automatically and you can do just:
sudo touch /media/$USER/boot/ssh
which you can confirm with:
lsblk
which contains:
mmcblk0 179:0 0...