I have the following program where I'm redirecting an output on terminal to a text file :
import telnetlib
import time
import string
tn = telnetlib.Telnet("192.168.1.102")
print "Attempting Telnet connection...."
tn.read_until("login: ")
tn.write("root1\n")
time.sleep(1)
tn.read_until("Password:")
tn.write("\n")
tn.write("\n")
tn.read_until("root1@mypc:~$")
tn.write("su\n")
tn.read_until("root@mypc:/home/root1")
tn.write("\n")
print "Telnet logged in successfully....\n"
tn.write("head /proc/meminfo > /home/a.txt")
tn.write("\n")
I would like to copy the textual contents of this file to a buffer variable and process it. That is, I don't want to read from the console/terminal. I just want to redirect the output to a text file and then read from the text file. Does telnetlib offer any direct function to achieve this or any alternate way to do the same?
TELNET protocol is more or less a distant terminal emulation. It offers no file transfert facilities because other protocols deal with that. That means that once you have written the file on remote system, you will have to display it with cat and store the output of the cat command.
Alternatively you could use a protocol meant for file transfert like FTP, RSYNC, SFTP, FTPS, etc. to download the remote file. Just use the one that is accessible on your remote system.