Created
October 17, 2012 21:18
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| Prozess A Prozess B | |
| f = open('/var/mail/foo') | |
| mv /var/mail/foo /var/mail/bar | |
| cat /var/mail/bar >> /var/mail/baz | |
| f.write(important_mail) | |
| f.close() | |
| rm /var/mail/bar |
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