sudo gem install rails - 这并没有给我一个用于 bash 的 rails 命令 [英] sudo gem install rails- this doesn't give me a rails command for bash

问题描述

我在 Ubuntu 上.我输入 sudo gem install rails.这很好用，可以很好地安装 railes 和 7 个其他 gem.然而 $ rails blog 是这样说的:

I'm on Ubuntu. I type in sudo gem install rails. This works fine, installs railes and 7 other gems fine. Yet $ rails blog is saying this:

The program 'rails' is currently not installed.  You can install it by typing:
sudo apt-get install rails

推荐答案

作为管理员或用户，您是如何安装 ruby​​gems 的?如果您以用户身份安装它，它的路径中可能没有 bin 目录.

how did you install rubygems, as an admin, or as a user? if you installed it as a user, it may not have the bin directory in your path.

如果我是你，(假设你将 ruby​​gems 安装到你的主文件夹中)，我会丢弃那个安装目录(不确定它的默认位置，可能是 ~/rubygems?还是 ~/.rubygems?)，然后运行 ​​setup.来自 ruby​​gems tarball 的 rb 以管理员身份(通过 sudo)我在 ubuntu 上已经完成了至少十几次，并且没有遇到您遇到的问题.

If I were you, (assuming you installed rubygems into your home folder), I would trash that installation dir (not sure where it defaults to, maybe ~/rubygems? or ~/.rubygems?), then run setup.rb from the rubygems tarball as admin (through sudo) I've done this at least a dozen times on ubuntu, and haven't run into the issue you are hitting.

如果不是这样，您能否链接到您关注的博客文章?

If that isn't the case, could you please link to the blog post you were following?

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