Question

我试图同时杀死多个进程。我使用这个简单的for循环通过PID编号终止进程。

        using System;
        using System.Collections.Generic;
        using System.Linq;

namespace ShowTest
{
    public class Depot
    {
        public string Name { get; set; }
        public Dictionary<Order, Dictionary<int, OrderLine>> Orders { get; set; } = new Dictionary<Order, Dictionary<int, OrderLine>>(new OrderEqualityComparer());
    }
    public class Order
    {
        public string Reference { get; set; }
        public DateTime DepotDate { get; set; }
    }
    #region comparer
    public class OrderEqualityComparer : IEqualityComparer<Order>
    {
        public bool Equals(Order x, Order y)
        {
            return (x.Reference == y.Reference);
        }

        public int GetHashCode(Order obj)
        {
            return (obj.Reference.GetHashCode());
        }
    }
    #endregion
    public class OrderLine
    {
        public int Qty { get; set; }
        public string ExternalRef { get; set; }
    }
    public class Demo
    {
        public static void Main()
        {
            #region Setting up values
            Order order = new Order { DepotDate = DateTime.Parse("15/01/2010"), Reference = "myOrderRef" };
            OrderLine orderLine1 = new OrderLine { ExternalRef = "Foo", Qty = 4 };
            OrderLine orderLine2 = new OrderLine { ExternalRef = "Bar", Qty = 8 };

            var orderLines = new Dictionary<int, OrderLine>();
            orderLines.Add(1, orderLine1);
            orderLines.Add(2, orderLine2);

            var orders = new Dictionary<Order, Dictionary<int, OrderLine>>();
            orders.Add(order, orderLines);

            Depot myDepot = new Depot { Name = "Funhouse", Orders = orders };
            #endregion

            foreach (string oRef in myDepot.Orders.Select(l => l.Key.Reference))
            {
                //for each order reference, there is an order containing many order lines. So, first we get the relevant order
                var thisOrder = (from l in myDepot.Orders
                                 where l.Key.Reference == oRef
                                 select l.Value.Values) as Dictionary<int, OrderLine>;

                if (thisOrder == null) { Console.WriteLine("Why is thisOrder null when the search criterion was retrieved from the order itself?"); }
                else { Console.WriteLine("Hooray, the damnable thing has contents!"); }
            }
        }
    }
}

如果我在终端中手动输入该循环，则该循环工作正常。但是如果我想从文件for i in $(ps -ejH | grep omn_bdxtrc|awk '{print $1}'); do kill ${i}; done中获取它，它将返回此输出。

(*.sh)

尝试了多种手动操作方式，但无法从文件中手动操作。

有任何想法为什么会这样？

先谢谢了。

Answer 1

似乎PID是作为单个参数传递的，该参数由换行符分隔，kill似乎并不受欢迎。

我将通过完全删除循环并将PID通过kill传递到xargs来简化方法：

ps -ejH | grep omn_bdxtrc | awk '{print $1}' | xargs kill

或者（如果您出于某些原因而没有或不想使用xargs），则可以保留当前循环，并通过使用以下命令将所有可能的换行符更改为空格来清理awk的输出tr：

for i in $(ps -ejH | grep omn_bdxtrc | awk '{print $1}' | tr '\n' ' '); do kill ${i}; done

但这并不那么优雅。

假设您知道进程的确切名称，也许最优雅的解决方案是使用killall：

killall omn_bdxtrc

或者如果您不知道确切的名称并且需要匹配一部分名称：

killall --regexp '.*omn_bdxtrc.*'

一次杀死多个进程只能手动执行，而不能从脚本内部执行

1 个答案: