terminal

问题 I'm very new to Scala. I have downloaded it, got it working in Eclipse where I'll be developing it; but I can't make it work in Terminal. All sites and books say to just type scala - this doesn't work. The website infuriatingly says: We assume that both the Scala software and the user environment are set up correctly. How do I do that bit? I'm very new to this, and using Jargon or assuming too much knowledge of frameworks around Scala will ruin a good response; please keep it simple. Mac OS X

问题 I'm running Python2.7 on windows 10 doing env and most pkg management with Anaconda. After upgrading a number of packages, my ipython console now fails to start in any IDE or at the console. When I attempt to run it at the console I get this error: Traceback (most recent call last): File "C:\Anaconda3\Scripts\ipython-script.py", line 3, in <module> import IPython File "C:\Anaconda3\lib\site-packages\IPython\__init__.py", line 48, in <module> from .core.application import Application File "C:

问题 When I try to run a script that contains the envsubst command, I get this error. Looking online, this seems to be a standard bash command, so I am not sure what to install in order to get it to work. 回答1: Edit: @cobberboy 's anwer is more correct. upvote him. brew install gettext brew link --force gettext Following is my old answer: envsubst is included in gettext package. Therefore you may compile it by your own, using standard build tools such as make or using homebrew . However, it seems

问题 I am getting an error message saying I can't connect to the docker daemon. I have looked into other people's answers who have had similar issues but it hasn't helped. I am running the version of Ubuntu 15.10. I will try to provide all the info I have. root@# docker-compose -f docker-compose-deps.yml up -d ERROR: Couldn't connect to Docker daemon at http+docker://localunixsocket - is it running? If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.

问题 When I work in terminal, I see the history of the last shell commands execution output. If I run vim, I see the file I open full screen. When I exit vim, I can see the history of the last shell commands again. However, when I use vim from screen. I see the footprint of the file I was just editing on my exit from vim instead of the history of the last shell commands. I'd like to see the shell's history though. How can I achieve this behaviour? I used: terminal.app and iterm2.app tried

问题 What command, or collection of commands, can I use to return all file extensions in a directory (including sub-directories)? Right now, I'm using different combinations of ls and grep , but I can't find any scalable solution. 回答1: How about this: find . -type f -name '*.*' | sed 's|.*\.||' | sort -u 回答2: find . -type f | sed 's|.*\.||' | sort -u Also works on mac. 回答3: list all extensions and their counts of current and all sub-directories ls -1R | sed 's/[^\.]*//' | sed 's/.*\.//' | sort |

问题 How can I clear a terminal screen after my user has selected an option from my application's menu? 回答1: :! run the shell command :! cls under windows :! clear under linux and OS X 回答2: This is what you may be looking for: ansi-terminal: Simple ANSI terminal support, with Windows compatibility You can find it in Hackage and install using cabal install ansi-terminal . It specifically has functions for clearing the screen, displaying colors, moving the cursor, etc. Using it to clear the screen

问题 The post summarizes problems in using Screen in Mac's terminal when you have the following in your .zshrc if [[ $STY = '' ]] then screen -xR; fi Solution #1 is not working but Solution #2 works: Clipboard programs: pbcopy, pbpaste and xsel do not work at all Bug in Vim when used in Mac: Unable to have no scattered windows in Screen by .Xresources. Solved: Ctrl A stops working in terminal. This suggests me that Screen's keyboard bindings need to be changed slightly. Solved: The scrolling with

问题 I want to differentiate the STDOUT and STDERR messages in my terminal. If a script or command is printing a message in terminal I want to differentiate by colors; is it possible? (E.g. stderr font color is red, and stdout font color is blue.) Example (using bold): $date Wed Jul 27 12:36:50 IST 2011 $datee bash: datee: command not found $alias ls alias ls='ls --color=auto -F' $aliass ls bash: aliass: command not found 回答1: Here's a hack that I thought of and it seems to work: Given the

问题 I was trying to make the syntax highlighting (with 256 colors) of vim work inside screen , which is running inside gterm . It works quite fine in the beginning. What I mean by "in the beginning" is, after I start screen , and enter vim , the colors look fine, and there are really 256 colors. But after a while (I don't know exactly how long) the colors automatically change back to an appearance as if there are only 8 (or 16?) colors. For example, after this has already occurred, if I enter the