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37 lines
843 B
Python
Executable File
37 lines
843 B
Python
Executable File
#! /usr/local/python
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# Print From and Subject of messages in $MAIL.
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# Extension to multiple mailboxes and other bells & whistles are left
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# as exercises for the reader.
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import sys, posix
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# Open mailbox file. Exits with exception when this fails.
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try:
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mailbox = posix.environ['MAIL']
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except RuntimeError:
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sys.stderr.write \
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('Please set environment variable MAIL to your mailbox\n')
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sys.exit(2)
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try:
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mail = open(mailbox, 'r')
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except RuntimeError:
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sys.stderr.write('Cannot open mailbox file: ' + mailbox + '\n')
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sys.exit(2)
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while 1:
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line = mail.readline()
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if not line: break # EOF
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if line[:5] = 'From ':
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# Start of message found
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print line[:-1],
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while 1:
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line = mail.readline()
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if not line: break # EOF
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if line = '\n': break # Blank line ends headers
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if line[:8] = 'Subject:':
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print `line[9:-1]`,
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print
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