I whipped up this small&dirty script to check which of the users in
/etc/passwd are not caught by /etc/aliases and which of them have
already gotten mail (via mail_spool or maildir_home).
Maybe it saves somebody a few minutes...
bye!hop
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#!/bin/bash
SYSUSERS=$(awk -F : '$3<1000 || $3>2999 { print $1 }' /etc/passwd)
echo "Mail for these users is not caught by /etc/aliases:"
for foo in $SYSUSERS
do
grep -Lq "^$foo" /etc/aliases || echo $foo
done
echo -e "\nThese system users may have already received Mail:"
for foo in $SYSUSERS
do
MAILDIR=$(awk -F: -v foo=$foo '$1 == foo { print $6 "/Maildir" }' /etc/passwd)
[ -a /var/mail/$foo ] && echo -e "$foo\tto /var/mail/$foo"
[ -a $MAILDIR ] && echo -e "$foo\tto $MAILDIR"
done
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