# Bad interpreter and end of line characters

**URL:** <https://www.ruby-forum.com/t/bad-interpreter-and-end-of-line-characters/94855>\
**Category:** Ruby\
**Created:** [May 16, 2006, 6:09pm UTC](https://www.ruby-forum.com/t/bad-interpreter-and-end-of-line-characters/94855 "2006-05-16T18:09:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![BergerS\_Daniel](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/bc8723/32.png) [@BergerS\_Daniel](https://www.ruby-forum.com/u/BergerS_Daniel)\
**Post date:** [May 16, 2006, 6:09pm UTC](https://www.ruby-forum.com/t/bad-interpreter-and-end-of-line-characters/94855/1 "2006-05-16T18:09:06Z")

</div>

Hi all,

Check it:

# test1.rb - created via Eclipse on Windows, using UTF8 encoding

#!/usr/bin/ruby

# test2.rb - created via vi on Linux

#!/usr/bin/ruby

> ./test1.rb  
> : bad interpreter: No such file or directory

> ./test2.rb

Hey! WTF?

> od test1.rb  
> 0000000 020443 072457 071163 061057 067151 071057 061165 006571  
> 0000020 000012  
> 0000021

> od test2.rb  
> 0000000 020443 072457 071163 061057 067151 071057 061165 005171  
> 0000020

Normally I can see newlines as ^M characters with vi, but I don’t see  
them, and attempting to replace them doesn’t work.

According to my ASCII chart, 12 is a newline. Ok, I wrote test1.rb on  
Windows. But where the heck is that 21 (device control 1?) coming from?  
Is it the UTF8 encoding? And how do I get rid of it? And why is it  
making Ruby choke?

Thanks,

Dan

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<div class="post-metadata">

**Author:** ![BergerS\_Daniel](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/bc8723/32.png) [@BergerS\_Daniel](https://www.ruby-forum.com/u/BergerS_Daniel)\
**Post date:** [May 16, 2006, 6:30pm UTC](https://www.ruby-forum.com/t/bad-interpreter-and-end-of-line-characters/94855/2 "2006-05-16T18:30:59Z")

</div>

> > > > > “B” == Berger, Daniel [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

> > od test1.rb  
> > B\> 0000000 020443 072457 071163 061057 067151 071057 061165 006571  
> > B\> 0000020 000012  
> > B\> 0000021

Try

cat -v test1.rb

or

od -b test1.rb

B\> Is it the UTF8 encoding? And how do I get rid of it? And why is it

ruby -pi.bak -e ‘$\_.sub!(/\cM$/, “”)’

Guy Decoux