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#!/bin/bash
# line-number.sh
# This script echoes itself twice to stdout with its lines numbered.
echo " line number = $LINENO" # 'nl' sees this as line 4
# (nl does not number blank lines).
# 'cat -n' sees it correctly as line #6.
nl `basename $0`
echo; echo # Now, let's try it with 'cat -n'
cat -n `basename $0`
# The difference is that 'cat -n' numbers the blank lines.
# Note that 'nl -ba' will also do so.
exit 0
# -----------------------------------------------------------------
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