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莱昂氏unix源代码分析 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
...引 3
UNIX操作系统文件及过程 5
UNIX操作系统定义的符号列表 7
UNIX操作系统源代码交叉引用列表 9
第一部分 初始化、进程初始化 25
第二部分 陷入、中断、系统调用和
进程管理 75
第三部分 程序交换、基本...
How to remove non-alphanumeric characters?
...orld'); // helloworld
preg_replace('/[^\p{L}\p{N} ]+/', '', 'abc@~#123-+=öäå'); // abc123öäå
preg_replace('/[^\p{L}\p{N} ]+/', '', '你好世界!@£$%^&*()'); // 你好世界
Note: This is a very old, but still relevant question. I am answering purely to provide supplementary informati...
Func delegate with no return type
...at 17:06
Aarón Ibañez WerthermännAarón Ibañez Werthermänn
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Read first N lines of a file in python
...he best, but for example if N=1000:
import pandas as pd
yourfile = pd.read_csv('path/to/your/file.csv',nrows=1000)
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AWK: Access captured group from line pattern
...ntaine Could grep -o output captured groups?
– Olle Härstedt
Mar 7 '18 at 15:29
1
@OlleHärstedt...
Is there a way to ignore header lines in a UNIX sort?
... pass the input in a second time to the sed command, like this: cat sortMe.csv | (sed 1q sortMe.csv; sort -t, -k3 -rn) > sorted.csv
– Harry Cramer
Jun 5 at 3:00
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How do I get currency exchange rates via an API such as Google Finance? [closed]
...se refer to finance.yahoo.com.
Request: http://finance.yahoo.com/d/quotes.csv?e=.csv&f=sl1d1t1&s=USDINR=X
This CSV was being used by a jQuery plugin called [Curry][1]. Curry has since (2017-08-29) moved to use fixer.io instead due to stability issues.
Might be useful if you need more than j...
Java: Integer equals vs. ==
... edited Jun 14 '18 at 12:30
buræquete
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answered Sep 3 '10 at 17:06
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逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...
...上就是对switch语句的反汇编，最重要的是理解了switch的跳转表的结构就能重新刻画出switch的结构了，问题就迎刃而解了。可以看到1中最后call 08048878<sscanf@plt>，猜测sscanf可能是C语言的内部函数，于是查到其定义为：int sscanf(const c...
What's the best way to use R scripts on the command line (terminal)?
...pr 15 '09 at 11:37
Jouni K. SeppänenJouni K. Seppänen
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