1#!/bin/bash 2 3if [ $# -ne 2 ] 4then 5 echo "Usage: $0 outputfile command" >&2 6 exit 1 7fi 8 9output=$1 10shift 11fast=0 12 13(sleep 3 14 while IFS= read -r line 15 do 16 case "$line" in 17 '##FAST' ) fast=1 ;; 18 '##SLOW' ) fast=0 ;; 19 * ) echo "$line" ;; 20 esac 21 if [ $fast -eq 0 ] ; then sleep 1 ; fi 22 done) | script $output "$@" 23