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Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网移动版 - ...
Linux bpftrace学习笔记（持续更新）Linux-bpftrace-notes图：BPF性能工具及其可见性bpftrace安装请参考：bpftrace-install。1、查看程序在打开哪些文件： bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n
图：BPF性能工具及其可见性
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Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
Linux bpftrace学习笔记（持续更新）Linux-bpftrace-notes图：BPF性能工具及其可见性bpftrace安装请参考：bpftrace-install。1、查看程序在打开哪些文件： bpftrace -e & 39;tracepoint:syscalls:sys_enter_open { printf("%s %s n
图：BPF性能工具及其可见性
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Python recursive folder read
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Make sure you understand the three return values of os.walk:
for root, subdirs, files in os.walk(rootdir):
has the following meaning:
root: Current path which is "walked through"
subdirs: Files in root of type directory
files: Files in root (not in subdirs) of type other ...
Get operating system info
...497878/
<?php
$user_agent = $_SERVER['HTTP_USER_AGENT'];
function getOS() {
global $user_agent;
$os_platform = "Unknown OS Platform";
$os_array = array(
'/windows nt 10/i' => 'Windows 10',
'/windows nt 6.3/i' ...
实战低成本服务器搭建千万级数据采集系统 - 更多技术 - 清泛网 - 专注C/C++...
...关键词需要访问3页，总共需要24个合作权限的应用。实际操作我们是不可能为这个项目做到开发24个合作权限的应用，所以这个方式不是很合适。新浪微博API限制参考链接。
2、通过各大微博的最新微博收集数据，微博刚推出...
PHP script - detect whether running under linux or Windows?
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Check the value of the PHP_OS constantDocs.
It will give you various values on Windows like WIN32, WINNT or Windows.
See as well: Possible Values For: PHP_OS and php_unameDocs:
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
echo 'This is a se...
os.path.dirname(__file__) returns empty
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Because os.path.abspath = os.path.dirname + os.path.basename does not hold. we rather have
os.path.dirname(filename) + os.path.basename(filename) == filename
Both dirname() and basename() only split the passed filename into compo...
Open document with default OS application in Python, both in Windows and Mac OS
...e able to open a document using its default application in Windows and Mac OS. Basically, I want to do the same thing that happens when you double-click on the document icon in Explorer or Finder. What is the best way to do this in Python?
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从网购到火车票，对比淘宝12306网为何如此烂？ - 大数据 & AI - 清泛网 - ...
...次限购一张车票。因此购买一张车票可以简化为包含四个操作：
1) 判断同一乘车日期同一车次是否有未预订的空余座位
2) 判断这个有效身份证是否已购买过同一乘车日期同一车次的车票
3) 车票上标注的座位标记为已预订
4) ...
How can I check file size in Python?
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You need the st_size property of the object returned by os.stat. You can get it by either using pathlib (Python 3.4+):
>>> from pathlib import Path
>>> Path('somefile.txt').stat()
os.stat_result(st_mode=33188, st_ino=6419862, st_dev=16777220, st_nlink=1, st_uid=...