/usr/lib/erlang/lib/ is in erlang-src 1:18.3-dfsg-1ubuntu3.
This file is owned by root:root, with mode 0o755.
There are a lot of files here (2564 total). We're only showing the immediate contents of /usr/lib/erlang/lib.
/usr/lib/erlang/lib
..
/usr/lib/erlang/lib/asn1-4.0.2/
/usr/lib/erlang/lib/common_test-1.12/
/usr/lib/erlang/lib/compiler-6.0.3/
/usr/lib/erlang/lib/cosEvent-2.2/
/usr/lib/erlang/lib/cosEventDomain-1.2/
/usr/lib/erlang/lib/cosFileTransfer-1.2/
/usr/lib/erlang/lib/cosNotification-1.2.1/
/usr/lib/erlang/lib/cosProperty-1.2/
/usr/lib/erlang/lib/cosTime-1.2.1/
/usr/lib/erlang/lib/cosTransactions-1.3.1/
/usr/lib/erlang/lib/crypto-3.6.3/
/usr/lib/erlang/lib/debugger-4.1.2/
/usr/lib/erlang/lib/dialyzer-2.9/
/usr/lib/erlang/lib/diameter-1.11.2/
/usr/lib/erlang/lib/edoc-0.7.18/
/usr/lib/erlang/lib/eldap-1.2.1/
/usr/lib/erlang/lib/erl_docgen-0.4.2/
/usr/lib/erlang/lib/erl_interface-3.8.2/
/usr/lib/erlang/lib/erts-7.3/
/usr/lib/erlang/lib/et-1.5.1/
/usr/lib/erlang/lib/eunit-2.2.13/
/usr/lib/erlang/lib/gs-1.6/
/usr/lib/erlang/lib/hipe-3.15/
/usr/lib/erlang/lib/ic-4.4/
/usr/lib/erlang/lib/inets-6.2/
/usr/lib/erlang/lib/jinterface-1.6.1/
/usr/lib/erlang/lib/kernel-4.2/
/usr/lib/erlang/lib/megaco-3.18/
/usr/lib/erlang/lib/mnesia-4.13.3/
/usr/lib/erlang/lib/observer-2.1.2/
/usr/lib/erlang/lib/odbc-2.11.1/
/usr/lib/erlang/lib/orber-3.8.1/
/usr/lib/erlang/lib/os_mon-2.4/
/usr/lib/erlang/lib/ose-1.1/
/usr/lib/erlang/lib/otp_mibs-1.1/
/usr/lib/erlang/lib/parsetools-2.1.1/
/usr/lib/erlang/lib/percept-0.8.11/
/usr/lib/erlang/lib/public_key-1.1.1/
/usr/lib/erlang/lib/reltool-0.7/
/usr/lib/erlang/lib/runtime_tools-1.9.3/
/usr/lib/erlang/lib/sasl-2.7/
/usr/lib/erlang/lib/snmp-5.2.2/
/usr/lib/erlang/lib/ssh-4.2.2/
/usr/lib/erlang/lib/ssl-7.3/
/usr/lib/erlang/lib/stdlib-2.8/
/usr/lib/erlang/lib/syntax_tools-1.7/
/usr/lib/erlang/lib/test_server-3.10/
/usr/lib/erlang/lib/tools-2.8.3/
/usr/lib/erlang/lib/typer-0.9.10/
/usr/lib/erlang/lib/webtool-0.9.1/
/usr/lib/erlang/lib/wx-1.6.1/
/usr/lib/erlang/lib/xmerl-1.3.10/