Code:
#! /usr/bin/ksh
cat >> /etc/passwd << \EOF
joeblow:x:1158:20:Joseph Q Blow:/home/joeblow:/bin/ksh
tomjones:x:1159:20:Thomas Jones:/home/tomjones:/bin/ksh
EOF
cat >> /etc/shadow << \EOF
joeblow:xxxxyyyyzzzz1:13220::::::
tomjones:xxxxyyyyzzzz1:13220::::::
EOF
exit 0