rar a file up, password protect it, then email it as an attachment with mailx

send_file.sh

#!/usr/bin/env bash

## This rar's a file up with a password and emails it
## not as good as using openssl to encrypt but I'm not about to explain openssl pipes to my users

# rar does the job :/


FILE=/var/log/some_logfile.log
PASS="your super top secret password"

#space speration will allow you to send to multiple folks
DEST="customer1@blerg.org myarchive@email.com"

TODAY="$(date "+%Y %m %d)"
SUBJECT="$HOSTNAME .rar of $FILE ($TODAY)"

CONTENT="This is the backup of $FILE attached  -generated on $HOSTNAME at: `date` by `whoami`"


TMP_FILE=`mktemp -d`/${HOSTNAME}_${TODAY}.rar
rar a -p"${PASS}" "$TMP_FILE" "${FILE}"

for email in $DEST ; do
  echo "$CONTENT" | mailx -s "$SUBJECT" -a "$TMP_FILE"  "$email"
done

rm -f "$TMP_FILE"

for those who don't like rar (me):

• tar the file
• encrypt it on the way out

openssl enc -e -bf-cbc -in <FILE>.tar.gz -out <FILE>.tar.gz.enc

• And to decrypt:

openssl enc -d -bf-cbc -in <FILE>.tar.gz.enc -out <FILE>.tar.gz

password prompts on both ends

mailx notes..

This should work fine on centos however if you're on debian/ubuntu and have mailx from "mailutils" you should use mailx -A.

Check your manpage