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how to check the jdk version used to compile a .class file [duplicate]
...'re looking for this on the command line (for a class called MyClass):
On Unix/Linux:
javap -verbose MyClass | grep "major"
On Windows:
javap -verbose MyClass | findstr "major"
You want the major version from the results. Here are some example values:
Java 1.2 uses major version 46
Java 1.3...
AWS ssh access 'Permission denied (publickey)' issue [closed]
...example was taken directly from the AWS tutorial for connecting to a Linux/UNIX machine at:
http://docs.amazonwebservices.com/AWSEC2/latest/GettingStartedGuide/
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Compiling simple Hello World program on OS X via command line
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If it's the latter, the most likely explanation is that you didn't check "UNIX Development Support" when you installed the development tools, so the command-line executables aren't installed in your path. Re-install the development tools, and make sure to click "customize" and check that box.
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What is in your .vimrc? [closed]
...statusline=%f "tail of the filename
"display a warning if fileformat isnt unix
set statusline+=%#warningmsg#
set statusline+=%{&ff!='unix'?'['.&ff.']':''}
set statusline+=%*
"display a warning if file encoding isnt utf-8
set statusline+=%#warningmsg#
set statusline+=%{(&fenc!='utf-8'&a...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...掉”自己的APP——向第三方应用开发者开放API(应用程序编程接口，以使应用程序可以在源程序一级上在多种操作系统上移植运行)。换句话说，这使得Uber客户在不使用Uber应用的情况下，也可以叫车。
据Uber官网发布的消息，这...
More lines in command window
...STDERR lines too. > myProgram.exe > output.txt 2>&1 it's from unix but for some reason works in cmd too.
– mauromartini
Apr 14 at 19:28
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How to import multiple .csv files at once?
...r looping construct in R you could merge your CSV files into one file.
In Unix, if the files had no headers, then its as easy as:
cat *.csv > all.csv
or if there are headers, and you can find a string that matches headers and only headers (ie suppose header lines all start with "Age"), you'd ...
Where are $_SESSION variables stored?
... by PHP's session.save_path configuration. Usually this is /tmp on a Linux/Unix system. Use the phpinfo() function to view your particular settings if not 100% sure by creating a file with this content in the DocumentRoot of your domain:
<?php
phpinfo();
?>
Here is the link to the PHP d...
(grep) Regex to match non-ASCII characters?
...-l to find the number. It doesn't have to be grep; I can use any standard Unix regular expression , like Perl , sed , AWK , etc.
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Turning multi-line string into single comma-separated
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Remember to handle Windows newlines (eg using dos2unix) if there are any CRLFs in the string.
– Bowi
Jul 2 at 15:19
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