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What I want to do: The cursor is initially blinking on the top left corner of the screen: 160 characters remaining _ When I press 'i': 159 characters remaining i When I press 'a': 158 characters remaining ia When I press 'm': 157 characters remaining iam and so on. What needs to be done(According to me): Need to clear the only the first three characters of the screen. Update the newly pressed key on the screen What I have tried: I tried to clear the whole screen and write everything that was there previously back on it. Why I am not happy with what I did: Because it gives a jerky appearance.

Each time I use pushd or popd, it print the stack to standard output. How not to do so? I don't want to do pushd > /dev/null each time because I have a lot of scripts calling each other. Maybe a nice override will do it, but I'll need to override these builtins only in my scripts, and then restore the correct behavior. You could add pushd () { command pushd "$@" > /dev/null } popd () { command popd "$@" > /dev/null } to the top of each script. This is probably the minimum amount of work it will take to solve your problem. In your .profile file (what ever it is called in your system) add: pushd

android ant 打包遇到 Compile failed; see the compiler error output for details. 1.把jdk换成jdk1.7 就能看到中文的错误信息，不然有的地方是乱码都看不懂。。。 2.如果遇到 错误: 非法字符: \65279( 在eclipse 中修改提示有非法字符的java文件的编码为：ISO-8859-1 就 看到java文件的开头有些乱码 ，删除即可 .修改完之后，把文件的编码改回utf-8 保存)其他问题就看错误信息修改吧 没错误了 用ant打包即可 来源： oschina 链接： https://my.oschina.net/u/267558/blog/209034

For all you "duplicate" fanatics, there is a similar question on SO right here . The difference is that I paint a vivid example that I can not understand the output of. The documentation for JspWriter and PrintWriter says there are two differences: 1. JspWriter can throw exceptions, PrintWriter should not do so. 2. JspWriter uses a PrintWriter behind the scene, but since by default JSP pages are buffered, the PrintWriter won't be created until the buffer is flushed - whatever that mean in the context of a JSP page. I'm not sure I've understood this last part. Consider this JSP page: <%@page

When I load ipython with any one of: ipython qtconsole ipython qtconsole --pylab ipython qtconsole --pylab inline The output buffer only holds the last 500 lines. To see this run: for x in range(0, 501): ...: print x Is there a configuration option for this? I've tried adjusting --cache-size but this does not seem to make a difference. Quickly: ipython qtconsole --IPythonWidget.buffer_size=1000 Or you can set it permanently by adding: c.IPythonWidget.buffer_size=1000 in your ipython config file. For discovering this sort of thing, a helpful trick is: ipython qtconsole --help-all | grep PATTERN