terminal

问题 I'm new to Unix, however, I have recently realized that very simple Unix commands can do very simple things to large data set very very quickly. My question is why are these Unix commands so fast relative to R? Let's begin by assuming that the data is big, but not larger than the amount of RAM on your computer. Computationally, I understand that Unix commands are likely faster than their R counterparts. However, I can't imagine that this would explain the entire time difference. After all

问题 I'm new to Unix, however, I have recently realized that very simple Unix commands can do very simple things to large data set very very quickly. My question is why are these Unix commands so fast relative to R? Let's begin by assuming that the data is big, but not larger than the amount of RAM on your computer. Computationally, I understand that Unix commands are likely faster than their R counterparts. However, I can't imagine that this would explain the entire time difference. After all

问题 I wanted to install some libraries to learn machine learning. I say's that i need to upgrade pip, but when i tried to install it $ pip install --upgrade pip Collecting pip Using cached pip-9.0.1-py2.py3-none-any.whl Installing collected packages: pip Found existing installation: pip 8.1.2 Uninstalling pip-8.1.2: Exception: Traceback (most recent call last): File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 215, in main status = self.run(options, args) File "/Library/Python/2.7

问题 I wanted to install some libraries to learn machine learning. I say's that i need to upgrade pip, but when i tried to install it $ pip install --upgrade pip Collecting pip Using cached pip-9.0.1-py2.py3-none-any.whl Installing collected packages: pip Found existing installation: pip 8.1.2 Uninstalling pip-8.1.2: Exception: Traceback (most recent call last): File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 215, in main status = self.run(options, args) File "/Library/Python/2.7

问题 I wanted to install some libraries to learn machine learning. I say's that i need to upgrade pip, but when i tried to install it $ pip install --upgrade pip Collecting pip Using cached pip-9.0.1-py2.py3-none-any.whl Installing collected packages: pip Found existing installation: pip 8.1.2 Uninstalling pip-8.1.2: Exception: Traceback (most recent call last): File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 215, in main status = self.run(options, args) File "/Library/Python/2.7

问题 I'm looking for the equivalent of a urlencode for terminal output -- I need to make sure that garbage characters I (may) print from an external source don't end up doing funky things to my terminal, so a prepackaged function to escape special character sequences would be ideal. I'm working in Python, but anything I can readily translate works too. TIA! 回答1: $ ./command | cat -v $ cat --help | grep nonprinting -v, --show-nonprinting use ^ and M- notation, except for LFD and TAB Here's the same

问题 I'm looking for the equivalent of a urlencode for terminal output -- I need to make sure that garbage characters I (may) print from an external source don't end up doing funky things to my terminal, so a prepackaged function to escape special character sequences would be ideal. I'm working in Python, but anything I can readily translate works too. TIA! 回答1: $ ./command | cat -v $ cat --help | grep nonprinting -v, --show-nonprinting use ^ and M- notation, except for LFD and TAB Here's the same

问题 The point was to make this little multiplayer game in the terminal, applying some basic graphics concepts to get a grasp on how it works and the maths behind it. Note I wish to do this for fun and I am fully aware there are way better alternatives out there to using a terminal. I'd need a console I could write to, so the point was to remove scroll bars and have the whole buffer printed to the screen. But because of the carriage return when characters get written to the end of the previous

问题 I was just reading this article - https://devblogs.microsoft.com/dotnet/visual-studio-2019-net-productivity-2/ and noticed in one of the GIF image, she is showing a terminal window inside VS editor itself. It looks like a fully fledged powershell window. How can we get that? Here is a screenshot. 回答1: How can we get that? The Terminal Window in the video seems to comes from a VS extension Whack Whack Terminal. You can download and install it in your vs2017. (Note:For vs2017, it should be

问题 I'm using OSX snow leopard, for the record. When I use emacs straight from terminal, I have a color set (e.g. for c/c++) that I'm very happy with---green on black, red comments, colored key words... etc etc. Some of this is set in my 'terminal preferences', and some is in my ~/.emacs file (see below). When I run emacs from screen, the basic color-scheme is the same (green on black), but the coloring is different (e.g. comment characters are red, but not the entire comments) -- and really