[no subject]

touch users.nomail
touch users.digest
touch users.single

grep '|VACATION|' old_users | \
  awk '{ printf("\"\" <%s>\n", $1); }'  >>users.nomail

grep -v '|VACATION|' old_users | \
  grep '|DIGEST|' | \
  awk '{ printf("\"\" <%s>\n", $1); }'   >> users.digest

grep -v '|VACATION|' old_users | \
  grep -v '|DIGEST|'  | \
  grep ': |PREAPPROVE|$' | \
  awk '{ printf("\"\" <%s>\n", $1); }'   >> users.nomail

grep -v '|VACATION|' old_users | \
  grep -v '|DIGEST|' | \
  grep -v ': |PREAPPROVE|$' | \
  awk '{ printf("\"\" <%s>\n", $1); }' >> users.single