/usr/share/doc/bash/examples/functions/seq is in bash-doc 4.3-6ubuntu1.
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# Chet Ramey <chet.ramey@case.edu>
#
# Copyright 1995 Chester Ramey
#
# 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, or (at your option)
# any later version.
#
# TThis 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# Generate a sequence from m to n, m defaults to 1.
seq ()
{
declare -i lo hi i # makes local
local _SEQ
case $# in
1) seq 1 "$1" ; return $? ;;
2) lo=$1 hi=$2
i=$lo _SEQ=""
while let "i <= hi"; do
_SEQ="${_SEQ}$i "
let i+=1
done
echo "${_SEQ# }"
return 0 ;;
*) echo seq: usage: seq [low] high 1>&2 ; return 2 ;;
esac
}
# like the APL `iota' function (or at least how I remember it :-)
iota()
{
case $# in
1) seq 1 "$1"; return $?;;
*) echo "iota: usage: iota high" 1>&2; return 2;;
esac
}
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