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Linux上安装dtrace（劝退篇） - 操作系统(内核) - 清泛网移动版 - 专注C++内核技术
Linux上安装dtrace（劝退篇）Linux-dtraceDTrace是Solaris下的产物，Linux上支持的不太好，还是建议不要用了，使用BPF BCC吧。------------为了追踪一下自己写的nginx模块的性能, 加上之前看了agentzh大哥的nginx教程, DTrace是Solaris下的产物，Li...
Linux上安装dtrace（劝退篇） - 操作系统(内核) - 清泛网移动版 - 专注C++内核技术
Linux上安装dtrace（劝退篇）Linux-dtraceDTrace是Solaris下的产物，Linux上支持的不太好，还是建议不要用了，使用BPF BCC吧。------------为了追踪一下自己写的nginx模块的性能, 加上之前看了agentzh大哥的nginx教程, DTrace是Solaris下的产物，Li...
Linux升级OpenSSL的方法 - 操作系统(内核) - 清泛网移动版 - 专注C/C++及内核技术
Linux升级OpenSSL的方法Linux_OpenSSL_upgrade1、先查看openssl版本：openssl version 通用命令，加 -a 参数显示更详细yum info openssl redhat系列的可以用dpkg-query -l & 39;openssl& 39; ubuntu 和debian可 1、先查看openssl版本：
openssl version #通用命令...
Linux上安装dtrace（劝退篇） - 操作系统(内核) - 清泛网移动版 - 专注C/C++及内核技术
Linux上安装dtrace（劝退篇）Linux-dtraceDTrace是Solaris下的产物，Linux上支持的不太好，还是建议不要用了，使用BPF BCC吧。------------为了追踪一下自己写的nginx模块的性能, 加上之前看了agentzh大哥的nginx教程, DTrace是Solaris下的产物，Li...
C++ 读写xml方法整理（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...*******************
* outline.c
*
* Copyright 1999, Clark Cooper
* All rights reserved.
*/
#include <stdio.h>
#include <expat.h>
#if defined(__amigaos__) && defined(__USE_INLINE__)
#include <proto/expat.h>
#endif
#ifdef XML_LARGE_SIZE
#if defined(XML_USE_MSC_EXTENSIONS) && _MS...
Batch Renaming of Files in a Directory
...name(r'c:\temp\xx', r'*.doc', r'new(%s)')
The above example will convert all *.doc files in c:\temp\xx dir to new(%s).doc, where %s is the previous base name of the file (without extension).
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Convert pem key to ssh-rsa format
...m assuming no password for the keys (which is bad).
Generate an RSA pair
All the following methods give an RSA key pair in the same format
With openssl (man genrsa)
openssl genrsa -out dummy-genrsa.pem 2048
In OpenSSL v1.0.1 genrsa is superseded by genpkey so this is the new way to do it (man...
Convert a series of parent-child relationships into a hierarchical tree?
...o '</ul>';
}
}
You'll only save 8 iterations on a dataset as small as this but on bigger sets it could make a difference.
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Merge PDF files
...iles, output_stream):
input_streams = []
try:
# First open all the files, then produce the output file, and
# finally close the input files. This is necessary because
# the data isn't read from the input files until the write
# operation. Thanks to
# h...
top -c command in linux to filter processes listed based on processname
Top lists all the processes, there are good options to filter the processes by username by using the option -u but I am wondering if there is any easy way to filter the processes based on processname listed under COMMAND column of the top output.
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