在 lInux 下切割文件(rar)
[charles@xiaotao ~]$ rar a -v2M Unix.Programming.Environment.rar "Unix Programming Environment.djvu" RAR 3.93 Copyright (c) 1993-2010 Alexander Roshal 15 Mar 2010 Shareware version Type RAR -? for help Evaluation copy. Please register. Creating archive Unix.Programming.Environment.rar Adding Unix Programming Environment.djvu Calculating the control sum Creating archive Unix.Programming.Environment.part2.rar ... Unix Programming Environment.djvu Calculating the control sum Creating archive Unix.Programming.Environment.part3.rar ... Unix Programming Environment.djvu OK Calculating the control sum Done
上面的命令是把文件切割为不大于 2M 的小文件，就像在 windows 下使用 rar 一样
2： 对于在 foreground 运行的程序， 按 ctrl + / 可以产生 core dump; 对于后台 (background)的程序，使用 kill -3
3: lspci ---> list all PCI devices (sound card, network card..)
[charles@charles ~]$ lspci | grep audio 00:1e.2 Multimedia audio controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 03)
4. linux 下面打开串口：
screen /dev/ttyS0 115200
