Remove old built erlang from ubuntu

Question

I used this script to install erlang.

https://gist.githubusercontent.com/bryanhunter/10380945/raw/b4edf4c6fd39c604392a96ce6ff21953ff941e51/build-erlang-17.0.sh

but later I found out https://github.com/yrashk/kerl. My question is how to remove old version of erlang in a clean way.

Answer 1

Usually there are just four folders affected by the installation:

bin executables:

/usr/local/bin/ct_run
/usr/local/bin/dialyzer
/usr/local/bin/epmd
/usr/local/bin/erl
/usr/local/bin/erl_call
/usr/local/bin/erlc
/usr/local/bin/escript
/usr/local/bin/run_erl
/usr/local/bin/snmpc
/usr/local/bin/to_erl
/usr/local/bin/typer

configuration file and epmd starting script:

/usr/local/etc/man.d/erlang.conf
/usr/local/etc/rc.d/epmd

a lib folder containing Erlang libraries:

/usr/local/lib/erlang/*

and the documentation:

/usr/local/share/doc/erlang/

They may be located slightly differently on your system, but you can always use something like find . -type d -name erlang to locate them.

That script you mentioned also installs some dependencies. You may use standard apt-get command to deinstall if needed, but they probably will be required by the Erlang installed by kerl anyway.