From: ts <decoux@...>
Date: 2006-08-12T22:50:06+09:00
Subject: Re: gets give me last arg of script ???

>>>>> "U" == Une b�vue <pere.noel@laponie.com.invalid> writes:

U> something i don't understand : gets give me last arg of script ???

 It's normal : it make the right thing.


moulon% ri Kernel#gets
------------------------------------------------------------ Kernel#gets
     gets(separator=$/)    => string or nil
------------------------------------------------------------------------
     Returns (and assigns to +$_+) the next line from the list of files
                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
     in +ARGV+ (or +$*+), or from standard input if no files are present
     ^^^^^^^^^^^^^^^^^^
     on the command line. Returns +nil+ at end of file. The optional
[...]
moulon%
  
U> notice the $*[0] is allready used in my script ???

 This is bad : $ variables must not be used, it's best to use ARGV.

 ARGV[0] is used but was *not* removed from ARGV

 Try this

moulon% ruby -e 'p ARGV[0]; p gets' inexistant
"inexistant"
-e:1:in `gets': No such file or directory - inexistant (Errno::ENOENT)
	from -e:1
moulon% 

moulon% ruby -e 'p ARGV.shift; p gets' inexistant
"inexistant"
Bonjour
"Bonjour\n"
moulon% 



-- 

Guy Decoux