#!/bin/sh

# License: LGPLv2

# _
#[ ]
#[_]
#
#  ]
#  ]
# _
# _]
#[_
# _
# _]
# _]
#
#[_]
#  ]
# _
#[_
# _]
# _
#[_
#[_]
# _
#  ]
#  ]
# _
#[_]
#[_]
# _
#[_]
#  ]

#!/bin/sh
# This script is pretty useless actually but
# demonstrates a couple of concepts:
#  a. self referencing
#  b. getting range of lines from a file
#
# example usage is:
#  clear; for i in `seq 0 9`; do ./7seg $i; sleep 1; clear; done

match $1 {
  with [0-9] 
  with * echo "Usage is $0 num, where num is 0 to 9" >&2; exit 1
}

setglobal num_plus_one = $[expr $1 + 1]
setglobal lines_minus_one = $[expr $num_plus_one '*' 3]
head -$[expr $lines_minus_one + 1] $[which $0] | tail -3 | cut -b2-