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...nt if ($seen{$_} .= @ARGV) =~ /10$/' file1 file2
(perl code from http://www.cyberciti.biz/faq/command-to-display-lines-common-in-files/ , which took it from "someone at comp.unix.shell news group").
See process substitution if you want to make it a one-liner.
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Where do I put image files, css, js, etc. in Codeigniter?
...nd the application outside your documentroot,(public_html, htdocs, public, www... etc)
Inside your public folder, you should put your public info, what the browsers can see, its common to find the folders: images, js, css; so your structure will be:
|- system/
|- application/
|---- models/
|---- v...
Array to Hash Ruby
...quire if your original array consists of arrays of key-value pairs: http://www.ruby-doc.org/core-2.1.0/Array.html#method-i-to_h.
[[:foo, :bar], [1, 2]].to_h
# => {:foo => :bar, 1 => 2}
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Quit and restart a clean R session from within R?
... with the command bellow:
install.packages("RDCOMClient", repos = "http://www.omegahat.net/R")
The code to simulate the keypresses within RStudio (Windows 10) are:
library(RDCOMClient)
wsh <- COMCreate("Wscript.Shell")
wsh$SendKeys("^+{F10}")
In the last line in the code above, the 'ctrl...
What does value & 0xff do in Java?
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From http://www.coderanch.com/t/236675/java-programmer-SCJP/certification/xff
The hex literal 0xFF is an equal int(255). Java represents int as 32 bits. It look like this in binary:
00000000 00000000 00000000 11111111
When you do a b...
What is the difference between And and AndAlso in VB.NET?
... should use AndAlso like you would use &&.
More info here: http://www.panopticoncentral.net/2003/08/18/the-ballad-of-andalso-and-orelse/
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Spring classpath prefix difference
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
What do the python file extensions, .pyc .pyd .pyo stand for?
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Also for some further discussion on .pyc vs .pyo, take a look at: http://www.network-theory.co.uk/docs/pytut/CompiledPythonfiles.html (I've copied the important part below)
When the Python interpreter is invoked with the -O flag, optimized code is generated and stored in ‘.pyo’ files. T...
Error in SQL script: Only one statement is allowed per batch
...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
What's a good hex editor/viewer for the Mac? [closed]
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On http://www.synalysis.net/ you can get the hex editor I'm developing for the Mac - Synalyze It!. It costs 7 € / 40 € (Pro version) and offers some extra features like histogram, incremental search, support of many text encodings ...