Today, we shall talk about one of the most frequently used command in Linux.

TAIL

The command is used to print last 10 lines of a file.

tail -f is used to print the last 10 lines plus it keeps on reading the file if a new data is added to the file.

tail -f can be used if a log is currently being updated. 

But then what is the use of tailf?

tailf is similar to tail -f except one difference that tailf does access the file if the file is not being updated or not growing.

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Hereby we shall try to understand a very basic program to send mail using python library smtplib

The smtplib in python defines a client object that can be used to send mail to any internet machine a SMTP listener daemon.

1. Create an SMTP object.

import smtplib

smtpObj=smtplib.SMTP(host,portNo);

Note that host or port number are optional.

host: the server where SMTP is running. example: smtp.gmail.com

port number: the port number where SMTP server is listening.

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