No such file or directory — /cygdrive/c/Ruby/bin/gem (LoadError)

Fix Cygwin Issue with RubyGem

//We must add the following to your .bashrc (C:\cygwin\home\user\.bashrc):

alias ruby='/cygdrive/c/Ruby21-x64/bin/ruby'
alias gem='/cygdrive/c/Ruby21-x64/bin/gem.bat'
alias irb='/cygdrive/c/Ruby21-x64/bin/irb.bat'
alias compass='/cygdrive/c/Ruby21-x64/bin/compass.bat'
alias sass='/cygdrive/c/Ruby21-x64/bin/sass.bat'
alias scss='/cygdrive/c/Ruby21-x64/bin/scss.bat'

For RailsInstaller

alias ruby='/cygdrive/c/RailsInstaller/Ruby2.3.0/bin/ruby.exe'
alias gem='/cygdrive/c/RailsInstaller/Ruby2.3.0/bin/gem.cmd'
alias bundle='/cygdrive/c/RailsInstaller/Ruby2.3.0/bin/bundle.bat'
alias rails='/cygdrive/c/RailsInstaller/Ruby2.3.0/bin/rails.bat'

I like to use a variable for the directory as such:

export RUBYBIN=/cygdrive/c/Ruby24-x64/bin
alias ruby=$RUBYBIN/ruby
alias ruby.exe=$RUBYBIN/ruby.exe
alias gem='$RUBYBIN/gem.bat'
alias irb='$RUBYBIN/irb.bat'
alias compass='$RUBYBIN/compass.bat'
alias sass='$RUBYBIN/sass.bat'
alias scss='$RUBYBIN/scss.bat'

For Ruby25 I had to use gem.cmd instead of gem.bat:

# ruby aliases
export RUBYBIN=/cygdrive/d/programs/Ruby25-x64/bin
alias ruby="$RUBYBIN"/ruby
alias gem="$RUBYBIN"/gem.cmd
alias bundle="$RUBYBIN"/bundle.bat

Thanks guys!!

There are the alias for jekyll too:

# ruby aliases
export RUBYBIN=/cygdrive/c/Ruby25-x64/bin
alias ruby="$RUBYBIN"/ruby
alias ruby.exe=$RUBYBIN/ruby.exe
alias gem="$RUBYBIN"/gem.cmd
alias bundle="$RUBYBIN"/bundle.bat
alias bundler="$RUBYBIN/bundler.bat"
alias jekyll="$RUBYBIN/jekyll.bat"

Hi, in cygwin when i use "$ Ceedling" command, i am facing the same issue as written below:
"C:\Ruby23\bin\ruby.exe: No such file or directory -- /cygdrive/c/Ruby23/bin/ceedling (LoadError)"

I tried with changing the .bashrc file but still error is not going. I have replaced the "rubyx.y." in the given code with "ruby23", as it is the version installed in my pc. Any new solution i can try?
Ruby installed version : 2.3.1p112
Ceedling version : 0.28.3

Thank you.

To load all files in the C:/Ruby32-x64/bin in Cygwin at once, I loop through all of them like this:

export RUBY_BIN="/cygdrive/c/Ruby32-x64/bin"
for file in $RUBY_BIN/*.bat; do
  base=$(basename -- "$file")
  cmd="${base%.*}"
  alias $cmd="$file"
done

Anf finally, I put this inside ~/.bash_profile as bash doesn't automatically load ~/.bashrc