/usr/share/doc/ruby-bio/examples/fsplit.rb is in ruby-bio 1.4.2-3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | #!/usr/bin/env ruby
#
# fsplit.rb - split FASTA file by each n entries
#
# Copyright (C) 2001 KATAYAMA Toshiaki <k@bioruby.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# $Id: fsplit.rb,v 0.1 2001/06/21 08:22:29 katayama Exp $
#
if ARGV.length != 2
print <<-USAGE
fsplit.rb - split FASTA file by each n entries
Usage :
% ./fsplit.rb 2000 seq.f
This will produce seq.f.1, seq.f.2, ... with containing 2000 sequences
in each file.
USAGE
exit 1
end
count = ARGV.shift.to_i
i = -1
while gets
if /^>/
i += 1
if i % count == 0
n = i / count
out = File.new("#{$FILENAME}.#{n+1}", "w+")
end
end
out.print
end
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