| #! /usr/bin/env python
|
|
|
| # Print From and Subject of messages in $MAIL.
|
| # Extension to multiple mailboxes and other bells & whistles are left
|
| # as exercises for the reader.
|
|
|
| import sys, os
|
|
|
| # Open mailbox file. Exits with exception when this fails.
|
|
|
| try:
|
| mailbox = os.environ['MAIL']
|
| except (AttributeError, KeyError):
|
| sys.stderr.write('No environment variable $MAIL\n')
|
| sys.exit(2)
|
|
|
| try:
|
| mail = open(mailbox)
|
| except IOError:
|
| sys.exit('Cannot open mailbox file: ' + mailbox)
|
|
|
| while 1:
|
| line = mail.readline()
|
| if not line:
|
| break # EOF
|
| if line.startswith('From '):
|
| # Start of message found
|
| print line[:-1],
|
| while 1:
|
| line = mail.readline()
|
| if not line or line == '\n':
|
| break
|
| if line.startswith('Subject: '):
|
| print repr(line[9:-1]),
|
| print
|
