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Full Discussion: Ruby: "Can't convert nil into String" error
Top Forums Programming Ruby: "Can't convert nil into String" error Post 302767937 by dexdex200 on Thursday 7th of February 2013 07:19:02 PM
Old 02-07-2013
That is happening because you are running the script wrong. Your script expects 3 arguments as input -- ARGV[0], ARGV[1] and ARGV[2] but you are only providing ARGV[0] and ARGV[1].
Therefore on line 9 ARGV[2] is nil and cannot be converted to a string hence the error. You need to run it like so:

Code:
ruby cron_parse.rb "Thurs Feb 7 01:00 UTC 2013" "Thurs Feb 7 01:14 UTC 2013" Filename

 

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LEARN ABOUT DEBIAN

racc

racc(1) 						      General Commands Manual							   racc(1)

NAME

       racc - Ruby LALR parser generator

SYNOPSIS

       racc [options] file

DESCRIPTION

       Racc is a LALR(1) parser generator.  It is written in Ruby itself, and generates Ruby program.

OPTIONS

       -g, --debug
	      output parser for user level debugging.

       -o, --output-file <outfile>
	      file name of output.  [<fname>.tab.rb]

       -e, --executable <rubypath>
		  insert #! line in output.  ('ruby' to default)

       -E, --embedded
	      output file which don't need runtime.

       -l, --no-line-convert
	      never convert line numbers.  (for ruby<=1.4.3)

       -c, --line-convert-all
	      convert line numbers also header and footer.

       -a, --no-omit-actions
	      never omit actions.

       -v, --verbose
	      create <filename>.output file.

       -O, --log-file <fname>
	      file name of verbose output.  [<fname>.output]

       -C, --check-only
	      syntax check only.

       -S, --output-status
	      output status time to time.

       --no-extentions
	      run without any ruby extentions.

       -h, --help
	      print this message and quit.

       --version
	      print version and quit.

       --runtime-version
	      print runtime version and quit.

       --copyright
	      print copyright and quit.

SEE ALSO

       /usr/share/doc/racc/html.en/index.html (English) or /usr/share/doc/racc/html.ja/index.html (Japanese).

								    April 2005								   racc(1)
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