Your interest in Hacking began a long time ago and sh(1) isn't dead.

Install OpenBSD Ports Tree directly from the Internet:

ftp -AVo- ftp.openbsd.org:/pub/OpenBSD/3.0/ports.tar.gz | tar -xzf - -C /usr/ &

Backup, encrypt (poorly), and email your home directory somewhere:

tar -czf- ~ | rot13 | uuencode home.$(id -nu).$(hostname).$(date +%Y%m%d).tgz | mail -s "Backup for $(id -nu) on $(date +%Y%m%d) at $(hostname)" $1

Prevent rm -rf bombs by stopping it with a "-i" switch as the first processed filename. see rm(1) for the -i:

touch ~/-i

Make a unix-conceptually pure, local path for binaries and man pages:

mkdir -p ~/.local/{bin,man}

export MANPATH=~/.local/man:$MANPATH:

export PATH=~/.local/bin:$PATH: