这一期的新发现上李淼老师的文章把他上月文章中物理学与佛教的关系又有发展,不知道是不是新发现或者zf主管部门的政策放宽了些,因为当年某编辑跟我说宗教相关的文章一般编辑部觉得还是不发为妙。
看完了之后有很多想法,有些和李老师的文章有关,有些无关,慢慢说。
这篇 Bash Shell Shortcuts 的快捷键总结的非常好。值得学习。下面内容大多数是拷贝粘贴与总结.
Ctrl + a - Jump to the start of the line Ctrl + b - Move back a char Ctrl + c - Terminate the command //用的最多了吧? Ctrl + d - Delete from under the cursor Ctrl + e - Jump to the end of the line Ctrl + f - Move forward a char Ctrl + k - Delete to EOL Ctrl + l - Clear the screen //清屏,类似 clear 命令 Ctrl + r - Search the history backwards //查找历史命令 Ctrl + R - Search the history backwards with multi occurrence Ctrl + u - Delete backward from cursor // 密码输入错误的时候比较有用 Ctrl + xx - Move between EOL and current cursor position Ctrl + x @ - Show possible hostname completions Ctrl + z - Suspend/ Stop the command 补充: Ctrl + h - 删除当前字符 Ctrl + w - 删除最后输入的单词
Alt + < - Move to the first line in the history Alt + > - Move to the last line in the history Alt + ? - Show current completion list Alt + * - Insert all possible completions Alt + / - Attempt to complete filename Alt + . - Yank last argument to previous command Alt + b - Move backward Alt + c - Capitalize the word Alt + d - Delete word Alt + f - Move forward Alt + l - Make word lowercase Alt + n - Search the history forwards non-incremental Alt + p - Search the history backwards non-incremental Alt + r - Recall command Alt + t - Move words around Alt + u - Make word uppercase Alt + back-space - Delete backward from cursor
// SecureCRT 如果没有配置好,这个就很管用了。
Here "2T" means Press TAB twice $ 2T - All available commands(common) //命令行补全,我认为是 Bash 最好用的一点 $ (string)2T - All available commands starting with (string) $ /2T - Entire directory structure including Hidden one $ ./2T - Only Sub Dirs inside including Hidden one $ *2T - Only Sub Dirs inside without Hidden one $ ~2T - All Present Users on system from "/etc/passwd" //第一次见到,很好用 $ $2T - All Sys variables //写Shell脚本的时候很实用 $ @2T - Entries from "/etc/hosts" //第一次见到 $ =2T - Output like ls or dir //好像还不如 ls 快捷 补充: Esc + T - 交换光标前面的两个单词
很多来自GNU 的 readline 库。另外一份总结也很好
记忆是所有技术人员的敌人。一次要把所有的都记住是不可能的。针对自己的使用习惯,对少数快捷键反复使用,短期内就会有效果。
你还知道那些好用的快捷键 ? 补充一下 ?
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an animated & fully browsable map of all homes in the United States, based on the huge catalog of U.S. residential properties & their construction dates retrieved from Trulia. developed by the well-known stamen.com, the dynamic animations use the year the properties were built to show the growth of streets, neighborhoods & cities over time.
it is quite impressive to explore how some sudden residential growths develop over time, ranging from the lineair, grid-like Piano, Texas, the internal redevelopments caused by SoMa San Francisco or the fast growing metropolitan areas around Las Vegas.
[links: trulia.com & stamen.com]
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