/usr/lib/tiger/systems/Linux/getuserhome is in tiger 1:3.2.3-12.
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 | #!/bin/sh
#
# cd to / in case we are down in a directory we don't have read
# access to. /bin/csh will barf if that is the case.
#
cd /
user="$1"
/bin/bash -c "echo ~$user" 2> /dev/null
|