在Windows中通过Cygwin安装RVM时出错

Question

I am attempting to install RVM through Cygwin, following this tutorial .

AFter creating the directory and cloning the git repository, I need to run ./osx_or_cygin_kick_off to begin the installation process.

This is the error message I am getting:

  $ ./osx_or_cygwin_kick_off
  ./automation/rvm/rvm_install: line 2: $'\r': command not found
  ./automation/rvm/rvm_install: line 3: syntax error near unexpected token `$'\r''
  '/automation/rvm/rvm_install: line 3: `install_rvm()
  ./automation/rvm/rvm_install_some_rubies: line 2: $'\r': command not found
  ./automation/rvm/rvm_install_some_rubies: line 3: syntax error near unexpected token `$'\r''
  '/automation/rvm/rvm_install_some_rubies: line 3: `install_some_rubies()

I read somewhere that converting the files to unix format via doc2unix might solve the problem, but it is only creating more error messages.

Any suggestions?

Answer 1

Edit:

The problem is that some Cygwin git installations try to do magic linefeed handling. To fix git so it stops mangling line endings, run:

git config --global core.autocrlf false

Original answer made more generic after comment clarification:

The file contains CRLF ( \\r\\n ) end-line sequences, which is typical on Windows. Unix doesn't like it, though; Unix (and Cygwin) want just LF ( \\n ). I'm guessing you cut-and-pasted that file, or downloaded it through some mechanism that appended Windows line endings.

To fix files in Cygwin:

tr -d '\r' <filename >filename.tmp

Check and make sure filename.tmp looks ok, then:

mv -f filename.tmp

Alternately, do a browser download and save (rather than cut and paste), or from the Cygwin shell, download using curl or wget .

In all of the above cases, you probably won't have an executable file (just readable). You can either make it executable with:

chmod 755 filename

Or run it through the shell explicitly:

sh filename

You'll run into this problem often if you use Windows editors to manipulate your Cygwin files. Editors inside Cygwin will be fine (eg Vim). Optionally, many free Windows editors support Unix line endings. Notepad++ is a good one with a Unix line-ending option.