I couldn’t figure out how to send an email with both the subject and from set from the command line.
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mail -s "my subject" example@foo.bar
worked with mail but would only set the subject.
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sendmail -f "sender@foo.bar" receiver@foo.bar
worked with sendmail but would only set the “from”. With a little help from Google I put this together:
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#!/bin/bash
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HOST=`hostname | awk 'BEGIN { FS="." } ; {print $1}'`
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DOMAIN=`hostname`
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PASSWORD='mypassword'
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BODY=`tail -n 40 /var/log/maillog`
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FROM="$HOST@$DOMAIN"
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TO='receiver@foo.bar'
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SUBJECT="Last 40 lines of maillog"
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(
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echo "From: $FROM"
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echo "Subject: $SUBJECT"
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echo "To: $TO"
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echo "$BODY"
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) | sendmail -f $FROM $TO
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