From: Sam Duncan <sduncan@...>
Date: 2011-04-22T08:03:10+09:00
Subject: Re: chomp behaviour

You are obviously not a *nix user ;]

That is a pipe, not a logical or.


On 22/04/11 10:57, JOSEPHJONES3247 wrote:
>
> '|' means in programming 'or' so the result would be.
>
> if "abc" is true which it is then command line will not see
>
> ruby -e 'puts gets.chomp("c")'
>
>
>
>
> ----- Original Message -----
> From: "Peter Zotov"<whitequark@whitequark.org>
> To: "ruby-talk ML"<ruby-talk@ruby-lang.org>
> Sent: Friday, April 15, 2011 7:21:24 PM
> Subject: Re: chomp behaviour
>
> On Sat, 16 Apr 2011 11:08:10 +0900, Steel Steel wrote:
>> Using 1.9.1
>> I noticed something with chomp
>>
>> $ echo "abc" | ruby -e 'puts gets.chomp("c")'
>> abc
>>
>> $ irb
>> irb(main):001:0>  "abc".chomp("c")
>> =>  "ab"
>>
>> It doesn't work on the command line, or am i doing it wrong.?
>> comments?
> "gets" returns the whole read string, with trailing newline ("\n").
> Try: echo "abc" | ruby -e 'p gets' # =>  "abc\n"
>
> You can either chomp it twice, or do "echo -n" instead of "echo"
> (the former does not add a newline), or use "strip" method, which
> removes all whitespace from begin and end of a string (check also
> "rstrip" and "lstrip" functions).
>