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How to go back (ctrl+z) in vi/vim
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On a mac you can also use command Z and that will go undo. I'm not sure why, but sometimes it stops, and if your like me and vimtutor is on the bottom of that long list of things you need to learn, than u can just close the windo...
Infinity symbol with HTML
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What's your environment? On the Mac, it's option-5. In GTK+, it's C-S-u 2 2 1 E. On Windows, it's ALT 2 3 6 (keypad). A good text editor will also have a way to define an abbrev for it.
– Ken
Feb 14 '10 at 0:19
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Is there a command to undo git init?
...again.
This post well show you how to find the hide .git file on Windows, Mac OSX, Ubuntu
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iOS: How to get a proper Month name from a number?
... Documentation for monthSymbols: developer.apple.com/library/mac/#documentation/Cocoa/Reference/…
– firecall
Jan 2 '12 at 3:46
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Android SDK location
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The default location for Android sdk(s) on a Mac is:
/Users/*username*/Library/Android/sdk
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How to remove unused imports from Eclipse
...Source -> Organize Imports.
Shortcut keys:
Windows: Ctrl + Shift + O
Mac: Cmd + Shift + O
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undefined method `source_index' for Gem:Module (NoMethodError)
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Update: In addition to the @uxp answer, if you running this command on a Mac running Catalina, there is a small change in command, you need to add -n.
So the command would be sudo gem update --system -n 1.8.25
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How to compile python script to binary executable
...starting point. PyInstaller also lets you create executables for linux and mac...
Here is how one could fairly easily use PyInstaller to solve the issue at hand:
pyinstaller oldlogs.py
From the tool's documentation:
PyInstaller analyzes myscript.py and:
Writes myscript.spec in the ...
常用Linux命令详解（持续更新） - 更多技术 - 清泛网 - 专注C/C++及内核技术
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使用ftp命令可以实现服务器之间文件的上传与下载
ftp IP地址 -> 输入用户名与密码进入
get 文件名 -> 下载文件到本地服务器 mget（下载多个文件）
put 文件名 -> 上传文件到远程服务器 mput（上传多个文件）
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How to redirect both stdout and stderr to a file [duplicate]
...be available in older versions of Bash. It does appear to be working on my machine which runs Gnu bash v3.2.48.
– James Wald
Apr 10 '14 at 7:32
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