Question

所以我正在编写一个简单的套接字程序。客户端将目录路径发送到服务器。＆＃39;数据＆＃39;是给定的目录路径。在下面的示例中，它采用给定的路径并运行Linux命令＆＃39; ls -l path＆＃39;。

        while True:
        print (data.decode())
        batcmd=('ls -l ' + data.decode())
        result = os.system(batcmd)

因此，如果客户输入＆＃39; / home / user＆＃39;，则shell命令＆＃39; ls -l / home / user＆＃39;将运行并显示目录的内容和权限。

现在我想对结果进行排序并对特定单词进行细化。然后显示包含该单词的行。例如，一行包含单词＆＃34; Pictures＆＃34;。所以我想显示那条

的那一行

drwxr-xr-x  3 myname myname 4096 Feb 25  2017 Pictures

如果我试试这个：

import subprocess
import os
from socket import socket, gethostbyname, AF_INET, SOCK_DGRAM
import sys

PORT_NUMBER = 2000
SIZE = 1024

hostName = gethostbyname( '0.0.0.0' )

mySocket = socket( AF_INET, SOCK_DGRAM )
mySocket.bind( (hostName, PORT_NUMBER) )

print ("Test server listening on port {0}\n".format(PORT_NUMBER))

# Receive no more than 1024 bytes


while True:
    (data,addr) = mySocket.recvfrom(SIZE)
    try:
        print >>sys.stderr, 'Received data from', addr
        while True:
            print (data.decode())
            batcmd=('ls -l ' + data.decode())
            result = os.system(batcmd)
            word = "Pictures"

            print result.find(word)

            # Do other stuff here
    finally:
        print >> sys.stderr, 'closing socket'
        sys.exit()

我收到错误＆＃34; AttributeError：＆＃39; int＆＃39;对象没有属性＆＃39;找到＆＃39;＆＃34;

如果我试试这个：

import subprocess
import os
from socket import socket, gethostbyname, AF_INET, SOCK_DGRAM
import sys

PORT_NUMBER = 2000
SIZE = 1024

hostName = gethostbyname( '0.0.0.0' )

mySocket = socket( AF_INET, SOCK_DGRAM )
mySocket.bind( (hostName, PORT_NUMBER) )

print ("Test server listening on port {0}\n".format(PORT_NUMBER))

# Receive no more than 1024 bytes


while True:
    (data,addr) = mySocket.recvfrom(SIZE)
    try:
        print >>sys.stderr, 'Received data from', addr
        while True:
            print (data.decode())
            batcmd=('ls -l ' + data.decode())
            result = os.system(batcmd)
            word = "pictures"

            for line in result:
                search_res = word(line)
                print line
                if search_res is None:
                    print ("That word does not exist.")
                break
            else:
                print ("something else")
            # Do other stuff

    finally:
        print >> sys.stderr, 'closing socket'
        sys.exit()

我得到TypeError：＆＃39; int＆＃39;对象不可迭代

查找单词并打印包含该单词的行的最佳方法是什么？

我是否需要将结果转储到文件中才能处理它？</ p>

如何在os.system输出中搜索字符串或行

0 个答案: