李二狗 — @Meniny
A Developer's Faux Pas
Jun
08
ImageMagick
Published 12:06 Jun 08, 2013 by @ezra.
#Technology# ImageMagick® is a software suite to create, edit, compose, or convert bitmap images. It can read and...
May
21
BSD : 异步 I/O
Published 12:05 May 21, 2013 by @ezra.
#Technology# 在 BSD 及其派生系统中，异步 I/O 是信号 SIGIO 与 SIGURG 的组合，其中 SIGIO 是通用异步 I/O 信号，SIGURG 则仅用来通知进程在网络连接上到达了带外的数据。
接收 ...
Jan
16
Fork Bomb
Published 12:01 Jan 16, 2013 by @ezra.
#Technology# 最开始知道 Fork Bomb 这个名词，是因为这样一句代码:
:() { :|:& }; :
乍看之下它是那么诡异又极具魅力，fork 这个东西相信大家也都不陌生，在 UNIX/Linu...
Nov
21
curl
Published 12:11 Nov 21, 2012 by @ezra.
#Technology# cURL is a software package which consists of command line tool and a library for transferring data u...
Nov
10
C++ 运算符优先级 对照表
Published 12:11 Nov 10, 2012 by @ezra.
#Technology#
C++运算符优先级
Precedence
Operator
...
Nov
10
TCP/UDP 常见端口 对照表
Published 12:11 Nov 10, 2012 by @ezra.
#Technology#
下面的表格中列举了包括在红帽企业 Linux 中的服务、守护进程、和程序所使用的最常见的通信端口。该列表还可以在 /etc/services 文件中找到。要查看由互联网号码分派局 (IANA) 制定...
Sep
16
UNIX/Linux 终端常用快捷键
Published 12:09 Sep 16, 2012 by @ezra.
#Technology# 常用终端快捷键
⌃ + y: 粘贴⌃ + u、⌃ + k、⌃ + w删除的文本。
⌃ + p: 上一个使用的历史命令。 (p: previous)
⌃ + n: 下一个使用的历史命令。 (n: nex...
Feb
22
What if 'kill -9' does not work?
Published 22:02 Feb 22, 2012 by @ezra.
#UNIX/Linux# I have a process I can't kill with kill -9 <pid>. What's the problem in such a case, especiall...
Jun
02
CommandLine 001
Published 12:06 Jun 02, 2010 by @ezra.
#Technology# 查看 dd 进度
killall -INFO dd
...
Jun
02
CommandLine 002
Published 12:06 Jun 02, 2010 by @ezra.
#Technology# 列出目录中所有的扩展名:
find /path/to/dir -type f | grep -o '\.[^./]*$' | sort | uniq
...
Jun
02
CommandLine 003
Published 12:06 Jun 02, 2010 by @ezra.
#Technology# 转换 ogg 为 avi:
mencoder -idx a.ogg -ovc lavc -oac mp3lame -o b.avi
...
Jun
02
CommandLine 004
Published 12:06 Jun 02, 2010 by @ezra.
#Technology# 保护目录不被 rm -rf * 命令删除:
cd <directory>; touch ./-i
...
