timeadd

来自「ksh 实现的基于hpux下的性能数据以及故障的采集程序。可以作为新手练手使用」· 代码 · 共 35 行

#!/bin/ksh

function  raisetime 
{
  # 输入参数为两个
  if [[ ${#} != 2 ]] then
     echo "用法 raisetime 原始时间[HHMM] 增量[Minutes]"
     return 1
  fi
  Time=$1
  increment=$2 

  if [[ ${#Time} = 4 ]] then
    hour=`expr substr $Time 1 2`
    min=`expr substr $Time 3 2`
  fi

  if [[ `expr $Time : '.*:'` > 0 ]] then
    hour=`expr $Time : '\(.*\):.*$`
    min=`expr $Time : '.*:\(.*\)$'`
  fi
#  echo "hour is $hour min is $min incr is $increment"


  echo "scale=0 ;( $min + $increment ) % 60 " | bc | read -r reachMin
  echo "scale=0 ;( $min + $increment ) / 60 " | bc | read -r addHour
  echo "scale=0 ;( $hour + $addHour ) % 24 " | bc | read -r reachHour
  echo "scale=0 ;( $hour + $addHour ) / 24 " | bc | read -r addDay
  printf "%02s %02s %s\n" ${reachHour} ${reachMin} $addDay 
  return 0

}

raisetime $1 $2