LINXU@N's BLOG

The fun of Linux is that you can configure it as you want. This post is about some config i made. 1.color vim ~/.bashrc add this line:    PS1='\[\033[1;32m\]\u\[\033[1;32m\]@\h >>\[\033[0;34m\]\w\$ \[\033[1;36m\]' save and quit. close the terminal and open a new one. Now it's colored. more HowTo and color in here . 2. show somthing open opening terminal (like the Linux Mint) vim /.bashrc  add command lines save and quit. examples: 1.calendar  add /usr/bin/cal in .bashrc. 2.fortune sudo apt-get install fortune-zh  (for others languages, aptitude seacrh them) add  /usr/bin/fortune-zh in .bashrc. 3.cowsay and others sudo apt-get install cowsay  add fortune-zh | cowsay   in .bashrc.

-Who is the most controversial man in the world recently? -Definitely it's Julia Assange . WikiLeaks had released a package of file encrypted with AES. What shall we do right now? yeah! download it and wait for the passphrase! So let's have a little try at encrypting in Ubuntu. GPG  here is sample file another_file. 1.gpg -c filename enter a passphrase.Now the file is encrypted. 2.gpg filename.gpg AES     Download AESCrypt here.     extract the package with         tar xzvf filename     then         make         sudo make install     I haven't tried aescrypt yet. But you can make it with a simple command. Just go to their home page. Others things: Chinese man page. while downloading source file of aescrypt, i found that they provide a manpage file. So making 'man aescrypt' working in terminal became a problem. After goo...

ubuntu下录屏的软件很多，recordmydesktop、istanbul、wink啊什么的。 不过好像很多geek录制tutorial时都是用ffmpeg的，于是我也想折腾一下。 之前apt-get的ffmpeg貌似是不能x11grab的。 按照网上的教程complie，也是从来没有成功过=。=！ 还好在网上发现个script，可以安装ffmpeg和x264.下载地址如下： http://code.google.com/p/x264-ffmpeg-up-to-date/downloads/detail?name=ffmpeginv1.4.sh 运行scrip，一路yes，大概5-10分钟就可以装好了。 >录制视频： $ffmpeg -r 30 -s 1280x1024 -f x11grab -i :0.0 -vcodec mpeg4 -qscale 1 ~/output.avi -r 是rate，应该是帧率的意思。30就是每秒30帧。 -s 是size，1208x1024是我的显示屏分辨率大小，也就是录制全屏了。 -f x11grab 是开启录制功能。ps:需要的编译时enable，用脚本安装的就自动有了。 -vcodec mpeg4视频编码。 -qscale 1 是视频质量，数字越小质量越好。 ~/output.avi是输出文件名。 >录制窗口 先要获取窗口大小和位置。 $xwininfo 提示选择要获取的窗口，点击完成。 运行结果如图： -geometry 902x587+143+99 就是所选窗口的大小及位置。 ffmepg命令就这样写： $ffmpeg -r 30 -s 902x588 -f x11grab -i :0.0+143,99 -vcodec mpeg4 -qscale 1 ~/output.avi 录制video+audio(via micophone)： ffmpeg -f oss -ac 2 -i /dev/dsp -f x11grab -r 30 -s 900x554 -i :0.0+199,249 -vcodec mpeg4 -qscale 1 ~/output.avi q键退出录制。

用mplayer直播摄像头内容。 linxuan@home:~$ mplayer -tv driver=v4l2 -vo xv tv:// via youtube http://www.youtube.com/watch?v=XpCEi6cabo8

As ssh became my first choice for going over GFW, a auto connected ssh tunnel is badly required. what i did for a long time is adding a application launcher whose property is set as "ssh -D port usr@host" to the panel. the tunnel will be established with one click and some pwd typing. I googled and find EXPECT. Step One: $sudo apt-get install expect Step Two: $vim ssh //create a new script. Step Three: //Input in Vim #!/usr/bin/expect spwan ssh -D port usr@host; expect "*password:"; send "pwd\r"; interact; //{esc};:wq;{enter} to save the file. Step Four: $chmod +x ssh Step Five: ./ssh Now the script will connect to ssh server automatically without requiring the pwd.

dedicate to @sychopx, without her instruction, this wouldn't be done. from BitlBee Home Page What is BitlBee? BitlBee brings IM (instant messaging) to IRC clients. It's a great solution for people who have an IRC client running all the time and don't want to run an additional MSN/AIM/whatever client. BitlBee currently supports the following IM networks/protocols: XMPP/Jabber (including Google Talk), MSN Messenger, Yahoo! Messenger, AIM and ICQ, and the Twitter microblogging network (plus all other Twitter API compatible services like identi.ca and status.net). 很明显的说了，bitlbee是把IM转成IRC的形式，非常适合整天开着irc而又不想开msn/aim的人。 目前bitlbee支持XMPP/Jabber (包括 Google Talk), MSN Messenger, Yahoo! Messenger, AIM and ICQ, and the Twitter 。 记录一下自己在ubuntu上折腾bitlbee的过程： 要准备的东西：irc客户端（这里用的是irssi） 插曲：因为看错了这个东西的名字，少看了个“l”，以为是“bitbee”，所以在ubuntu apt安装是一直找不到。事实上，bitlbee已经包含在ubuntu源里了。另外，据@sychopx says， in fact you don't have to install it to use it. it's already implemented on the server. all you n...

奇迹了。。居然可以上了，内牛满面。