Email attachment created in bash script with uuencode and ssmtp is delivered with malformed filename and zero-length

This very old thread shows how to use uuencode and ssmtp to send an email with attachment from a bash script. I've created this test script to debug: #!/bin/bash set -x NOW=$( date '+%F' ) #( date '+%F_%H-%M-%S' ) LOGPATH=/home/pi/logs LOGFILE=test-log-$NOW.txt FULL_LOG=$LOGPATH'/'$LOGFILE echo "This is a test of the log email send $LOGPATH $LOGFILE $FULL_LOG " > $FULL_LOG echo -e "To: test@mydomain.com\nSubject: test log send\n\n" | (cat - && /usr/bin/uuencode $FULL_LOG) | /usr/sbin/ssmtp -t Output looks like this: + echo 'This is a test of the log email send /home/pi/logs test-log-2025-02-22.txt /home/pi/logs/test-log-2025-02-22.txt ' + echo -e 'To: test@mydomain.com\nSubject: test log send\n\n' + cat - + /usr/sbin/ssmtp -t + /usr/bin/uuencode /home/pi/logs/test-log-2025-02-22.txt No errors occur, and an email is delivered with the subject to the correct address. The problem is the email attachment is delivered as a file named homepilogstest-log-2025-02-222.txt The attachment is a zero-length file. The file is correctly created on the Pi and contains the expected contents: $ ls -l logs/test-log-2025-02-22.txt -rw-r--r-- 1 pi pi 116 Feb 22 12:19 logs/test-log-2025-02-22.txt $ cat logs/test-log-2025-02-22.txt This is a test of the log email send /home/pi/logs test-log-2025-02-22.txt /home/pi/logs/test-log-2025-02-22.txt What am I missing?