/usr/lib/fastdnaml/bin/usertree is in fastdnaml 1.2.2-11+b1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 | #! /bin/sh
#
# usertree shell script
#
# Modified July 14, 1992 to accept phylip_tree prolog fact.
#
if test $# -lt 1 -o $# -gt 2; then echo "Usage: $0 treefile [ L ]"; exit; fi
read first_line
echo "$first_line U $2"
cat -
egrep '((;)|(\)\.))[ ]*$' $1 | wc -l
cat $1
|