re = /^.*? +/m
str = '0:- Profile 1
1:- Archetype Realist*in
2:- RIASEC Code: R- Realistic
3:- Subline Deine Stärke? Du bleibst dir selber treu.
4:- Copy Dein Erfolg basiert auf deiner praktischen Ver...'
subst = ''
result = str.gsub(re, subst)
# Print the result of the substitution
puts result
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html