Generate unique mac address using bash & python

new_mac_address.sh

# evilroot at Karols-MacBook-Pro.local in ~ [15:53:05]
→ python - << EOF
import random
mac = [ 0x00, 0x16, 0x3e,
        random.randint(0x00, 0x7f),
        random.randint(0x00, 0xff),
        random.randint(0x00, 0xff) ]
print ':'.join(map(lambda x: "%02x" % x, mac))
EOF
00:16:3e:76:e0:78

# evilroot at Karols-MacBook-Pro.local in ~ [15:53:06]
→ function new_mac() {
function> python - << EOF
import random
mac = [ 0x00, 0x16, 0x3e,
        random.randint(0x00, 0x7f),
        random.randint(0x00, 0xff),
        random.randint(0x00, 0xff) ]
print ':'.join(map(lambda x: "%02x" % x, mac))
EOF
function> }

# evilroot at Karols-MacBook-Pro.local in ~ [15:54:28]
→ alias nma=new_mac

# evilroot at Karols-MacBook-Pro.local in ~ [15:54:31]
→ nma
00:16:3e:7d:32:bf

# evilroot at Karols-MacBook-Pro.local in ~ [15:54:32]
→ nma
00:16:3e:60:75:96

# evilroot at Karols-MacBook-Pro.local in ~ [15:54:34]
→ nma
00:16:3e:57:f5:24