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  • if for case 及多参数同时传递

    #!/bin/bash
    case $1 in
    'start')
            echo "start server..."
            ;;
    'stop')
            echo "stop server..."
            ;;
    'restart')
            echo "restart server..."
            ;;
    'status')
            echo "runing..."
            ;;
    *)
            echo "./`basename $0` {start|stop||restart|status} "
            ;;
    esac
    ~

     同时接收多个参数

    #!/bin/bash
    #
    DEBUG=0
    ADD=0
    DEL=0
    
    for I in `seq 0 $#`; do
      if [ $# -gt 0 ]; then
          case $1 in
          -v|--verbose)
            DEBUG=1
            shift ;;
          -h|--help)
            echo "Usage: `basename $0` --add USER_LIST --del USER_LIST -v|--verbose -h|--help"
            exit 0
            ;;
          --add)
            ADD=1
            ADDUSERS=$2
            shift 2  #shift 是踢掉变量的值
            ;;
          --del)
            DEL=1
            DELUSERS=$2
            shift 2
            ;;
          *)
            echo "Usage: `basename $0` --add USER_LIST --del USER_LIST -v|--verbose -h|--help"
            exit 7
            ;;
        esac
      fi
    done
    
    if [ $ADD -eq 1 ]; then
      for USER in `echo $ADDUSERS | sed 's@,@ @g'`; do
        if id $USER &> /dev/null; then
          [ $DEBUG -eq 1 ] && echo "$USER exists."
        else
          useradd $USER
          [ $DEBUG -eq 1 ] && echo "Add user $USER finished."
        fi
      done
    fi
    
    if [ $DEL -eq 1 ]; then
      for USER in `echo $DELUSERS | sed 's/\,/ /g'`; do
        if id $USER &> /dev/null; then
          userdel -r $USER
          [ $DEBUG -eq 1 ] && echo "Delete $USER finished."
        else
          [ $DEBUG -eq 1 ] && echo "$USER not exist."
        fi
      done
    fi
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  • 原文地址:https://www.cnblogs.com/sysk/p/4739458.html
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