shell脚本，循环的记录

  1 #########################################################################
  2 # File Name: showlogged.sh
  3 # Author: zhang yunabo
  4 # mail: ma6174@163.com
  5 # Created Time: Mon 27 Aug 2018 08:07:33 AM EDT
  6 #########################################################################
  7 #!/bin/bash
  8 declare -i debug=0
  9 declare -i count=0
 10 declare -i showusers=0
 11 
 12 for i in `seq 1 $#`;do
 13     if [ $# -gt 0 ];then
 14         case $1 in
 15             -h|--help)
 16                 echo "usage:`basename $0` -h|--help -c|--counts -v|--verbose"
 17                 exit 0;;
 18             -v|--verbose)
 19                 let debug+=1;;
 20             -c|--counts)
 21                 let count+=1;;
 22             *)
 23                 echo "usage:`basename $0` -h|--help -c|--counts -v|--verbose"
 24                 exit 0;;
 25         esac
 26     fi
 27     shift
 28 done
 29 
 30 if [ $count -eq 1 ]
 31 then
 32     echo "loged user :`who | wc -l`"
 33 fi
 34 if [ $debug -eq 1 ]
 35 then
 36     w
 37 fi