Darkmatter in Cyberspace

摘要： Start up Dired mode: C-x d; (List dirs: C-x C-d)Hide Dired mode window: q;MarkMark (for group manipulation): [n]m;Mark with regex: %m;Mark files whose contents match regular expression (like mark with... 阅读全文

摘要： The following expect script achieves a simple telnet client: login -> send command -> exit. The point is the form of prompt in regular expression. You have to add 3 backslash before "[", "]" and "$", ... 阅读全文

摘要： Chapter 3Section "The expect Command": expect_out(0,string) can NOT be written as "expect_out(0, string)", blank before "string" will make a mistake;Concurrent matching: expect {item1 {send cmd1}item2... 阅读全文

摘要： Write a violation rules file;Import it into Sonar as a Quality Profile named as "MyRules";Add the following properties to ant script: Run Ant script, and you can get the report at $PROJECT_HOME/.sonar... 阅读全文

摘要： 下面是体现带参数调试的一个代码demo，首先输出参数的数量，然后依次输出每个参数。 public class ArgsEx { public static void main(String[] args) { int argNum = args.length; System.out.println("args number is = "+argNum); for (int i = 0; i... 阅读全文

摘要： sudo apt-get mit-scheme;run "scheme" then you enter the command line scheme repl;sudo apt-get emacs;modify "(setq scheme-program-name "scm")" in .emacs to "(setq scheme-program-name "scheme")", becaus... 阅读全文

摘要： Login as admin, go to a dashboard of a project, then click "Configuration -> History" at the upper-right corner of the panel. 阅读全文

摘要： 需要微软的Sysinternals Suite中的sync工具，解压到d:\apps下。ahk脚本：#u:: ; eject usb drive InputBox, myInp, Remove USB, Input Drive Letter:, if ErrorLevel return else Run, d:\Apps\SysinternalsSuite\sync.exe -e %... 阅读全文

摘要： 作为Java程序员来说，最痛苦的事情莫过于可以选择的范围太广，可以读的书太多，往往容易无所适从。我想就我自己读过的技术书籍中挑选出来一些，按照学习的先后顺序，推荐给大家，特别是那些想不断提高自己技术水平的Java程序员们。 在这份推荐阅读书籍的名单中，我没有列举流行的软件框架类学习书籍，例如Struts，Hibernate，Spring之类，也没有列举AJAX方面的书籍。是因为这类书籍容易过时，而... 阅读全文

摘要： Linux系统的iconv指令是一个很好的文件编码转换工具，支持的编码范围广，使用方便，例如将一个utf-8编码的文件（名为tic）转换为gbk编码：iconv -f utf-8 -t gbk tic > ticgbk可以用"iconv -l"查看支持的编码列表。另：用file -i 可以查看一个文件的编码方式。 阅读全文