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How to do date/time comparison

...heck.After(start) && check.Before(end) } func main() { start, _ := time.Parse(time.RFC822, "01 Jan 15 10:00 UTC") end, _ := time.Parse(time.RFC822, "01 Jan 16 10:00 UTC") in, _ := time.Parse(time.RFC822, "01 Jan 15 20:00 UTC") out, _ := time.Parse(time.RFC822, "01 Jan 17 10...
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How to use `subprocess` command with pipes

I want to use subprocess.check_output() with ps -A | grep 'process_name' . I tried various solutions but so far nothing worked. Can someone guide me how to do it? ...
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Download a file from NodeJS Server using Express

...e life easier. app.get('/download', function(req, res){ const file = `${__dirname}/upload-folder/dramaticpenguin.MOV`; res.download(file); // Set disposition and send it. }); Old Answer As far as your browser is concerned, the file's name is just 'download', so you need to give it more info ...
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How to get the width and height of an android.widget.ImageView?

...eight, finalWidth; final ImageView iv = (ImageView)findViewById(R.id.scaled_image); final TextView tv = (TextView)findViewById(R.id.size_label); ViewTreeObserver vto = iv.getViewTreeObserver(); vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() { public boolean onPreDraw() { ...
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What predefined macro can I use to detect clang?

... Found the answer using strings + grep : $ strings /usr/bin/clang | grep __ | grep -i clang __clang__ share | improve this answer | follow | ...
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How do I set a variable to the output of a command in Bash?

... which could be sourced for use or just run for demo.) Sample: source shell_connector.sh tty /dev/pts/20 ps --tty pts/20 fw PID TTY STAT TIME COMMAND 29019 pts/20 Ss 0:00 bash 30745 pts/20 R+ 0:00 \_ ps --tty pts/20 fw newConnector /usr/bin/bc "-l" '3*4' 12 ps --tty p...
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Getting Java version at runtime

... every JVM. There are two possible formats for it: Java 8 or lower: 1.6.0_23, 1.7.0, 1.7.0_80, 1.8.0_211 Java 9 or higher: 9.0.1, 11.0.4, 12, 12.0.1 Here is a trick to extract the major version: If it is a 1.x.y_z version string, extract the character at index 2 of the string. If it is a x.y.z v...
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How can I access and process nested objects, arrays or JSON?

...tation again to access the name property. So we eventually get: const item_name = data.items[1].name; Alternatively, we could have used bracket notation for any of the properties, especially if the name contained characters that would have made it invalid for dot notation usage: const item_name ...
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Create subdomains on the fly with .htaccess (PHP)

...P Then in your PHP scripts you can find out the domain by looking in the $_SERVER super global variable. Here is an example of grabbing the subdomain in PHP: preg_match('/([^.]+)\.example\.org/', $_SERVER['SERVER_NAME'], $matches); if(isset($matches[1])) { $subdomain = $matches[1]; } I have ...
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术

Shell脚本编程30分钟入门linux_shell_30min_guides什么是Shell脚本示例看个例子吧:#! bin shcd ~mkdir shell_tutcd shell_tutfor ((i=0; i<10; i++)); do touch test_$i.txt... 什么是Shell脚本 示例 看个例子吧: #!/bin/sh cd ~ mkdir shell_tut cd shell_tut for (...