/usr/ is in libgtop2-dev 2.34.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/libgtop-2.0/
/usr/include/libgtop-2.0/glibtop/
/usr/lib/x86_64-linux-gnu/libgtop-2.0.so
/usr/include/libgtop-2.0/glibtop/close.h
/usr/include/libgtop-2.0/glibtop/command.h
/usr/include/libgtop-2.0/glibtop/cpu.h
/usr/include/libgtop-2.0/glibtop/fsusage.h
/usr/include/libgtop-2.0/glibtop/global.h
/usr/include/libgtop-2.0/glibtop/gnuserv.h
/usr/include/libgtop-2.0/glibtop/loadavg.h
/usr/include/libgtop-2.0/glibtop/mem.h
/usr/include/libgtop-2.0/glibtop/mountlist.h
/usr/include/libgtop-2.0/glibtop/msg_limits.h
/usr/include/libgtop-2.0/glibtop/netlist.h
/usr/include/libgtop-2.0/glibtop/netload.h
/usr/include/libgtop-2.0/glibtop/open.h
/usr/include/libgtop-2.0/glibtop/parameter.h
/usr/include/libgtop-2.0/glibtop/ppp.h
/usr/include/libgtop-2.0/glibtop/procaffinity.h
/usr/include/libgtop-2.0/glibtop/procargs.h
/usr/include/libgtop-2.0/glibtop/prockernel.h
/usr/include/libgtop-2.0/glibtop/proclist.h
/usr/include/libgtop-2.0/glibtop/procmap.h
/usr/include/libgtop-2.0/glibtop/procmem.h
/usr/include/libgtop-2.0/glibtop/procopenfiles.h
/usr/include/libgtop-2.0/glibtop/procsegment.h
/usr/include/libgtop-2.0/glibtop/procsignal.h
/usr/include/libgtop-2.0/glibtop/procstate.h
/usr/include/libgtop-2.0/glibtop/proctime.h
/usr/include/libgtop-2.0/glibtop/procuid.h
/usr/include/libgtop-2.0/glibtop/procwd.h
/usr/include/libgtop-2.0/glibtop/sem_limits.h
/usr/include/libgtop-2.0/glibtop/shm_limits.h
/usr/include/libgtop-2.0/glibtop/signal.h
/usr/include/libgtop-2.0/glibtop/swap.h
/usr/include/libgtop-2.0/glibtop/sysdeps.h
/usr/include/libgtop-2.0/glibtop/sysinfo.h
/usr/include/libgtop-2.0/glibtop/union.h
/usr/include/libgtop-2.0/glibtop/uptime.h
/usr/include/libgtop-2.0/glibtop.h
/usr/include/libgtop-2.0/glibtop_machine.h
/usr/include/libgtop-2.0/glibtop_server.h
/usr/include/libgtop-2.0/libgtopconfig.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libgtop-2.0.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libgtop-2.0.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libgtop2-dev/
/usr/share/doc/libgtop2-dev/changelog.Debian.gz
/usr/share/doc/libgtop2-dev/changelog.gz
/usr/share/doc/libgtop2-dev/copyright
/usr/share/gir-1.0/
/usr/share/gir-1.0/GTop-2.0.gir