每個循環編寫單個文件與python中編寫多個文件相比

Question

我有以下腳本，該腳本允許我登錄不同的路由器並運行不同的命令，然后將它們輸出到一個文件中，這很好用，只是我進入的每個路由器都有一個文件。 因此，我要做的就是看看無論裝入多少盒，我都只能得到一個文件。 我使用host.txt文件定義路由器，並使用commands.txt文件定義要運行的命令。

import telnetlib

user = "user"
password = "password"


#Getting list of Sites to use and logging in
with open('host.txt', 'r') as hostlist:
    host = [line.strip() for line in hostlist]
    for hostname in host:
        tn = telnetlib.Telnet(hostname,23,30)
        print "Grabbing data from site"
        tn.read_until("Username: ")
        tn.write(user + "\n")
        tn.read_until("Password: ")
        tn.write(password + "\n")
        tn.write("\n")
        tn.write("term length 0\n")
        with open('commands.txt', 'r') as commandlist:
            commands = [line.strip() for line in commandlist]
            for commandcall in commands:
                tn.write(commandcall + "\n")
        tn.write("exit\n")
        outFile = open(hostname + ".txt", "wt")
        outFile.write (tn.read_all())
        outFile.close()
        tn.close()

Answer 1

你有：

host = [line.strip() for line in hostlist]
for hostname in host:

然后：

outFile = open(hostname + ".txt", "wt")
outFile.write (tn.read_all())
outFile.close()

因此，每個主機名都將生成一個新文件是有意義的，因為您將遍歷循環時將outFile.open（）的參數更改為每個主機名。

如果將open（）的參數設置為靜態字符串，則應該執行所需的操作。 您還希望使用“ a”附加。

outFile = open("RouterLog.txt", "a")
outFile.write (tn.read_all())
outFile.close()