shell下的进度条和最大最小平均值

进度条

C语言下的进度条参考我原来的一篇blog->进度条

  function proc() 
{
      i=0  
      str='' 
      arr=('|' '/' '-' '\\') 
      index=0 
      while [ $i -le 100 ] 
      do 
          printf "[%-101s][%d%%][%c]\r" "$str" "$i" "${arr[$index]}"                                                                                       
          str=${str}'#' 
          sleep 0.1 
          let i++ 
          let index++ 
          let index%=4 
      done 
      printf "\n" 
}
    
 function main() 
{
     proc 
}
main

最大值，最小值，平均值

 #!/bin/bash                                                                                                                                              
   
max=0
min=0
count=0
 sum=0 
 while read line 
do
     if [ $count -eq 0 ];then 
     max=$line 
     min=$line 
     let count++ 
     let sum+=$line 
     continue 
     fi 
     [ "$max" -lt "$line" ] && max=$line 
     [ "$min" -gt "$line" ] && min=$line 
     let sum+=$line 
     let count++ 
 done<file 
 echo $max 
 echo $min 
 echo "ibase=10; scale=2; $sum/$count" | bc 