diff --git a/a/ABAQUS/ABAQUS-2017-hotfix-1721.eb b/a/ABAQUS/ABAQUS-2017-hotfix-1721.eb
deleted file mode 100644
index c0357522..00000000
--- a/a/ABAQUS/ABAQUS-2017-hotfix-1721.eb
+++ /dev/null
@@ -1,24 +0,0 @@
-name = 'ABAQUS'
-version = '2017'
-hotfix = '1721'
-versionsuffix = '-hotfix-%s' % hotfix
-
-homepage = 'http://www.simulia.com/products/abaqus_fea.html'
-description = """Finite Element Analysis software for modeling, visualization and best-in-class implicit and explicit
- dynamics FEA."""
-
-toolchain = {'name': 'dummy', 'version': ''}
-
-sources = [
-    '%(version)s.AM_SIM_Abaqus_Extend.AllOS.1-6.tar',
-    '%(version)s.AM_SIM_Abaqus_Extend.AllOS.2-6.tar',
-    '%(version)s.AM_SIM_Abaqus_Extend.AllOS.3-6.tar',
-    '%(version)s.AM_SIM_Abaqus_Extend.AllOS.4-6.tar',
-    '%(version)s.AM_SIM_Abaqus_Extend.AllOS.5-6.tar',
-    '%(version)s.AM_SIM_Abaqus_Extend.AllOS.6-6.tar',
-    # hotfixes
-    '%%(version)s.FP.CFA.%s.Part_3DEXP_SimulationServices.Linux64.tar' % hotfix,
-    '%%(version)s.FP.CFA.%s.Part_SIMULIA_Abaqus_CAE.Linux64.tar' % hotfix,
-]
-
-moduleclass = 'cae'
diff --git a/a/AMOS/AMOS-3.1.0-goolf-1.4.10.eb b/a/AMOS/AMOS-3.1.0-goolf-1.4.10.eb
deleted file mode 100644
index 440bc7a9..00000000
--- a/a/AMOS/AMOS-3.1.0-goolf-1.4.10.eb
+++ /dev/null
@@ -1,41 +0,0 @@
-##
-# This file is an EasyBuild reciPY as per https://github.com/easybuilders/easybuild
-#
-# Copyright:: Copyright 2012-2014 Uni.Lu/LCSB, NTUA
-# Authors::   Cedric Laczny <cedric.laczny@uni.lu>, Fotis Georgatos <fotis@cern.ch>
-# License::   MIT/GPL
-# $Id$
-#
-# This work implements a part of the HPCBIOS project and is a component of the policy:
-# http://hpcbios.readthedocs.org/en/latest/HPCBIOS_2012-94.html
-##
-
-easyblock = 'ConfigureMake'
-
-name = 'AMOS'
-version = '3.1.0'
-
-homepage = 'http://sourceforge.net/apps/mediawiki/amos/index.php?title=AMOS'
-description = """The AMOS consortium is committed to the development of open-source whole genome assembly software"""
-
-toolchain = {'name': 'goolf', 'version': '1.4.10'}
-toolchainopts = {'optarch': True, 'pic': True}
-
-sources = [SOURCELOWER_TAR_GZ]
-source_urls = [('http://sourceforge.net/projects/amos/files/%s/%s' % (name.lower(), version), 'download')]
-
-patches = ['AMOS-3.1.0_GCC-4.7.patch']
-
-dependencies = [
-    ('expat', '2.1.0'),
-    ('MUMmer', '3.23'),
-]
-
-sanity_check_paths = {
-    'files': ['bin/AMOScmp', 'bin/AMOScmp-shortReads', 'bin/AMOScmp-shortReads-alignmentTrimmed'],
-    'dirs': []
-}
-
-parallel = 1  # make crashes otherwise
-
-moduleclass = 'bio'
diff --git a/a/AMOS/AMOS-3.1.0-ictce-5.3.0.eb b/a/AMOS/AMOS-3.1.0-ictce-5.3.0.eb
deleted file mode 100644
index d767191d..00000000
--- a/a/AMOS/AMOS-3.1.0-ictce-5.3.0.eb
+++ /dev/null
@@ -1,40 +0,0 @@
-##
-# This file is an EasyBuild reciPY as per https://github.com/easybuilders/easybuild
-#
-# Copyright:: Copyright 2012-2014 Uni.Lu/LCSB, NTUA
-# Authors::   Cedric Laczny <cedric.laczny@uni.lu>, Fotis Georgatos <fotis@cern.ch>
-# License::   MIT/GPL
-# $Id$
-#
-# This work implements a part of the HPCBIOS project and is a component of the policy:
-# http://hpcbios.readthedocs.org/en/latest/HPCBIOS_2012-94.html
-##
-
-easyblock = 'ConfigureMake'
-
-name = 'AMOS'
-version = '3.1.0'
-
-homepage = 'http://sourceforge.net/apps/mediawiki/amos/index.php?title=AMOS'
-description = """The AMOS consortium is committed to the development of open-source whole genome assembly software"""
-
-
-toolchain = {'name': 'ictce', 'version': '5.3.0'}
-toolchainopts = {'optarch': True, 'pic': True}
-
-sources = [SOURCELOWER_TAR_GZ]
-source_urls = [('http://sourceforge.net/projects/amos/files/%s/%s' % (name.lower(), version), 'download')]
-
-dependencies = [
-    ('expat', '2.1.0'),
-    ('MUMmer', '3.23'),
-]
-
-sanity_check_paths = {
-    'files': ['bin/AMOScmp', 'bin/AMOScmp-shortReads', 'bin/AMOScmp-shortReads-alignmentTrimmed'],
-    'dirs': []
-}
-
-parallel = 1  # make crashes otherwise
-
-moduleclass = 'bio'
diff --git a/a/ARB/ARB-5.5-goolf-1.4.10.eb b/a/ARB/ARB-5.5-goolf-1.4.10.eb
deleted file mode 100644
index 41b26e29..00000000
--- a/a/ARB/ARB-5.5-goolf-1.4.10.eb
+++ /dev/null
@@ -1,37 +0,0 @@
-name = 'ARB'
-version = '5.5'
-
-homepage = 'http://www.arb-home.de/'
-description = """The ARB software is a graphically oriented package comprising various tools for sequence database
-handling and data analysis. A central database of processed (aligned) sequences and any type of additional data linked
-to the respective sequence entries is structured according to phylogeny or other user defined criteria."""
-
-toolchain = {'name': 'goolf', 'version': '1.4.10'}
-
-# download from http://download.arb-home.de/release/arb_5.5, and rename to include version
-sources = ['%(namelower)s-%(version)s-src.tgz']
-
-patches = [
-    '%(name)s-%(version)s_xmkmf.patch',
-    '%(name)s-%(version)s_xflags.patch',
-]
-
-dependencies = [
-    ('libpng', '1.6.6'),
-    ('LibTIFF', '4.0.3'),
-    ('Java', '1.7.0_15', '', True),
-    ('lynx', '2.8.7'),
-    ('makedepend', '1.0.4'),
-    ('imake', '1.0.5'),
-    ('libXt', '1.1.4'),
-    ('motif', '2.3.4'),  # libXm
-    ('libXpm', '3.5.11'),
-    ('libXaw', '1.0.12'),
-    ('Perl', '5.16.3'),
-    ('libxslt', '1.1.28'),
-    ('freeglut', '2.8.1'),
-    ('Sablotron', '1.0.3'),
-    ('libxml2', '2.9.1'),
-]
-
-moduleclass = 'bio'
diff --git a/c/CUDA/CUDA-7.5.18.eb b/c/CUDA/CUDA-7.5.18.eb
deleted file mode 100644
index 51cc9d1f..00000000
--- a/c/CUDA/CUDA-7.5.18.eb
+++ /dev/null
@@ -1,16 +0,0 @@
-name = 'CUDA'
-version = '7.5.18'
-
-homepage = 'https://developer.nvidia.com/cuda-toolkit'
-description = """CUDA (formerly Compute Unified Device Architecture) is a parallel
- computing platform and programming model created by NVIDIA and implemented by the
- graphics processing units (GPUs) that they produce. CUDA gives developers access
- to the virtual instruction set and memory of the parallel computational elements in CUDA GPUs."""
-
-toolchain = {'name': 'dummy', 'version': 'dummy'}
-
-source_urls = ['http://developer.download.nvidia.com/compute/cuda/%(version_major_minor)s/Prod/local_installers/']
-
-sources = ['%(namelower)s_%(version)s_linux.run']
-
-moduleclass = 'system'
diff --git a/test.sh b/duplicate.sh
similarity index 90%
rename from test.sh
rename to duplicate.sh
index 36d4c0ae..2e5aec98 100755
--- a/test.sh
+++ b/duplicate.sh
@@ -37,4 +37,6 @@ done
 echo ""
 
 for read in `cat duplicate`; do grep "$read" it4i; done | sort -u > remove_list
-rm duplicate it4i develop
+for rm in `cat remove_list | cut -d ';' -f 2`; do find . -name $rm -exec rm {} \;; done
+
+rm duplicate it4i develop remove_list
diff --git a/g/GSL/GSL-2.3-intel-2017a.eb b/g/GSL/GSL-2.3-intel-2017a.eb
deleted file mode 100644
index 23a2fed6..00000000
--- a/g/GSL/GSL-2.3-intel-2017a.eb
+++ /dev/null
@@ -1,19 +0,0 @@
-easyblock = 'ConfigureMake'
-
-name = 'GSL'
-version = '2.3'
-
-homepage = 'http://www.gnu.org/software/gsl/'
-description = """The GNU Scientific Library (GSL) is a numerical library for C and C++ programmers.
- The library provides a wide range of mathematical routines such as random number generators, special functions
- and least-squares fitting."""
-
-toolchain = {'name': 'intel', 'version': '2017a'}
-toolchainopts = {'unroll': True, 'pic': True}
-
-source_urls = [GNU_SOURCE]
-sources = [SOURCELOWER_TAR_GZ]
-
-configopts = "--with-pic"
-
-moduleclass = 'numlib'
diff --git a/h/HPL/HPL-2.2-intel-2017b.eb b/h/HPL/HPL-2.2-intel-2017b.eb
deleted file mode 100644
index 6fb24071..00000000
--- a/h/HPL/HPL-2.2-intel-2017b.eb
+++ /dev/null
@@ -1,19 +0,0 @@
-name = 'HPL'
-version = '2.2'
-
-homepage = 'http://www.netlib.org/benchmark/hpl/'
-description = """HPL is a software package that solves a (random) dense linear system in double precision (64 bits)
- arithmetic on distributed-memory computers. It can thus be regarded as a portable as well as freely available
- implementation of the High Performance Computing Linpack Benchmark."""
-
-toolchain = {'name': 'intel', 'version': '2017b'}
-toolchainopts = {'usempi': True}
-
-sources = [SOURCELOWER_TAR_GZ]
-source_urls = ['http://www.netlib.org/benchmark/%(namelower)s']
-checksums = ['ac7534163a09e21a5fa763e4e16dfc119bc84043f6e6a807aba666518f8df440']
-
-# fix Make dependencies, so parallel build also works
-patches = ['HPL_parallel-make.patch']
-
-moduleclass = 'tools'
diff --git a/m/Mesa/Mesa-12.0.2-intel-2016b.eb b/m/Mesa/Mesa-12.0.2-intel-2016b.eb
deleted file mode 100644
index 2ac60cb5..00000000
--- a/m/Mesa/Mesa-12.0.2-intel-2016b.eb
+++ /dev/null
@@ -1,62 +0,0 @@
-# the purpose of the easyconfig is to build a Mesa for software rendering,
-# not hardware rendering. This means you want at least SSE4.2. We build:
-# - llvmpipe: the high-performance Gallium LLVM driver
-# - swr: Intel's OpenSWR
-# it will try to use the llvmpipe by default. It you want swr, do:
-# GALLIUM_DRIVER=swr
-
-easyblock = 'ConfigureMake'
-
-name = 'Mesa'
-version = '12.0.2'
-
-homepage = 'http://www.mesa3d.org/'
-description = """Mesa is an open-source implementation of the OpenGL specification -
- a system for rendering interactive 3D graphics."""
-
-toolchain = {'name': 'intel', 'version': '2016b'}
-# swr detects and builds parts specific for AVX and AVX2. If we use
-# -xHost, this always gets overwritten and will fail.
-toolchainopts = {'optarch': False}
-
-sources = [SOURCELOWER_TAR_XZ]
-source_urls = [
-    'https://mesa.freedesktop.org/archive/%(version)s',
-    'ftp://ftp.freedesktop.org/pub/mesa/%(version)s',
-    'ftp://ftp.freedesktop.org/pub/mesa/older-versions/%(version_major)s.x/%(version)s',
-]
-
-builddependencies = [
-    ('flex', '2.6.0'),
-    ('Bison', '3.0.4'),
-    ('Autotools', '20150215'),
-    ('pkg-config', '0.29.1'),
-    ('Mako', '1.0.4', '-Python-2.7.12'),
-    ('libxml2', '2.9.4', '-Python-2.7.12'),
-]
-
-dependencies = [
-    ('zlib', '1.2.8'),
-    ('nettle', '3.2'),
-    ('libdrm', '2.4.70'),
-    ('LLVM', '3.8.1'),
-    ('X11', '20160819'),
-]
-
-# GLU is not part anymore of Mesa package!
-configopts = " --disable-osmesa --enable-gallium-osmesa --enable-gallium-llvm --enable-glx --disable-dri"
-configopts += " --disable-driglx-direct --with-gallium-drivers='swrast,swr' --disable-egl"
-configopts += " --with-osmesa-bits=32 --enable-texture-float --enable-llvm-shared-libs "
-
-sanity_check_paths = {
-    'files': ['lib/libGL.%s' % SHLIB_EXT, 'lib/libOSMesa.%s' % SHLIB_EXT,
-              'lib/libGLESv1_CM.%s' % SHLIB_EXT, 'lib/libGLESv2.%s' % SHLIB_EXT,
-              'include/GL/glext.h', 'include/GL/gl_mangle.h',
-              'include/GL/glx.h', 'include/GL/osmesa.h',
-              'include/GL/gl.h', 'include/GL/glxext.h',
-              'include/GL/glx_mangle.h', 'include/GLES/gl.h',
-              'include/GLES2/gl2.h', 'include/GLES3/gl3.h'],
-    'dirs': []
-}
-
-moduleclass = 'vis'
diff --git a/remove_list b/remove_list
deleted file mode 100644
index 4c88cceb..00000000
--- a/remove_list
+++ /dev/null
@@ -1,12 +0,0 @@
-0515e2cba0b6b96e9a955ad98a991119;SuiteSparse-4.5.5-intel-2017a-METIS-5.1.0.eb
-11f2dc760748e6e004378c8e2b277b70;XML-Parser-2.44-foss-2016a-Perl-5.22.1.eb
-1af592f5c53593710e9a65d4aecaa8f6;ABAQUS-2017-hotfix-1721.eb
-22df523f7cc85cc59ef94b864ba42cb8;HPL-2.2-intel-2017b.eb
-37a67325bd697ba16456d47f96a809e9;GSL-2.3-intel-2017a.eb
-42c0a56911761bebefa424a6580e80fe;ARB-5.5-goolf-1.4.10.eb
-454e580a5ededc4fc3ef984aac28bfe9;Mesa-12.0.2-intel-2016b.eb
-4f649bd51dadf7c43d0b5118db54d915;AMOS-3.1.0-goolf-1.4.10.eb
-515233dc386f6b025bc6c88ec8377c65;xcb-proto-1.11.eb
-a47f78ce229d82b7818feb0d9e2e9480;CUDA-7.5.18.eb
-d5a4360bcafc8486b843c83767044a7d;ScientificPython-2.9.4-intel-2016a-Python-2.7.11.eb
-e8b947919b8aeb4a6a394d6831f5d6a4;AMOS-3.1.0-ictce-5.3.0.eb
diff --git a/s/ScientificPython/ScientificPython-2.9.4-intel-2016a-Python-2.7.11.eb b/s/ScientificPython/ScientificPython-2.9.4-intel-2016a-Python-2.7.11.eb
deleted file mode 100644
index 90ba2524..00000000
--- a/s/ScientificPython/ScientificPython-2.9.4-intel-2016a-Python-2.7.11.eb
+++ /dev/null
@@ -1,31 +0,0 @@
-easyblock = 'PythonPackage'
-
-name = 'ScientificPython'
-version = '2.9.4'
-versionsuffix = '-Python-%(pyver)s'
-
-homepage = 'https://sourcesup.cru.fr/projects/scientific-py/'
-description = """ScientificPython is a collection of Python modules for scientific computing.
- It contains support for geometry, mathematical functions, statistics, physical units, IO, visualization,
- and parallelization."""
-
-toolchain = {'name': 'intel', 'version': '2016a'}
-
-source_urls = ['https://sourcesup.cru.fr/frs/download.php/file/4570']
-sources = [SOURCE_TAR_GZ]
-
-dependencies = [
-    ('Python', '2.7.11'),
-    # older version of numpy than the one included in Python module required
-    # cfr. https://bitbucket.org/khinsen/scientificpython/issue/13/numpy-19-has-dropped-support-for
-    ('numpy', '1.8.2', versionsuffix),
-]
-
-options = {'modulename': 'Scientific'}
-
-sanity_check_paths = {
-    'files': [],
-    'dirs': ['lib/python%(pyshortver)s/site-packages/Scientific'],
-}
-
-moduleclass = 'math'
diff --git a/s/SuiteSparse/SuiteSparse-4.5.5-intel-2017a-METIS-5.1.0.eb b/s/SuiteSparse/SuiteSparse-4.5.5-intel-2017a-METIS-5.1.0.eb
deleted file mode 100644
index 3f7ce4f2..00000000
--- a/s/SuiteSparse/SuiteSparse-4.5.5-intel-2017a-METIS-5.1.0.eb
+++ /dev/null
@@ -1,19 +0,0 @@
-name = 'SuiteSparse'
-version = '4.5.5'
-metis_ver = '5.1.0'
-versionsuffix = '-METIS-%s' % metis_ver
-
-homepage = 'http://faculty.cse.tamu.edu/davis/suitesparse.html'
-description = """SuiteSparse is a collection of libraries manipulate sparse matrices."""
-
-toolchain = {'name': 'intel', 'version': '2017a'}
-toolchainopts = {'unroll': True, 'pic': True}
-
-source_urls = ['http://faculty.cse.tamu.edu/davis/SuiteSparse/']
-sources = [SOURCE_TAR_GZ]
-
-dependencies = [('METIS', metis_ver)]
-
-parallel = 1
-
-moduleclass = 'numlib'
diff --git a/x/XML-Parser/XML-Parser-2.44-foss-2016a-Perl-5.22.1.eb b/x/XML-Parser/XML-Parser-2.44-foss-2016a-Perl-5.22.1.eb
deleted file mode 100644
index 71416dbf..00000000
--- a/x/XML-Parser/XML-Parser-2.44-foss-2016a-Perl-5.22.1.eb
+++ /dev/null
@@ -1,27 +0,0 @@
-easyblock = 'PerlModule'
-
-name = 'XML-Parser'
-version = '2.44'
-versionsuffix = '-Perl-%(perlver)s'
-
-homepage = 'http://search.cpan.org/~toddr/XML-Parser-2.41/'
-description = """This is a Perl extension interface to James Clark's XML parser, expat."""
-
-toolchain = {'name': 'foss', 'version': '2016a'}
-
-source_urls = ['http://cpan.metacpan.org/authors/id/T/TO/TODDR/']
-sources = [SOURCE_TAR_GZ]
-
-dependencies = [
-    ('Perl', '5.22.1'),
-    ('expat', '2.1.1')
-]
-
-options = {'modulename': 'XML::Parser'}
-
-sanity_check_paths = {
-    'files': [],
-    'dirs': ['lib/perl5/site_perl/%(perlver)s/x86_64-linux-thread-multi/XML'],
-}
-
-moduleclass = 'data'
diff --git a/x/xcb-proto/xcb-proto-1.11.eb b/x/xcb-proto/xcb-proto-1.11.eb
deleted file mode 100644
index 6a306d86..00000000
--- a/x/xcb-proto/xcb-proto-1.11.eb
+++ /dev/null
@@ -1,26 +0,0 @@
-easyblock = 'ConfigureMake'
-
-name = 'xcb-proto'
-version = '1.11'
-
-homepage = 'http://xcb.freedesktop.org/'
-description = """The X protocol C-language Binding (XCB) is a replacement for Xlib featuring a small footprint,
-latency hiding, direct access to the protocol, improved threading support, and extensibility."""
-
-# even though xcb-proto is installed with configure-make-make install, nothing is actually built;
-# only .py files are installed using Python, and some .xlm flies copied, so OK to use dummy toolchain
-toolchain = {'name': 'dummy', 'version': 'dummy'}
-
-source_urls = ['http://xcb.freedesktop.org/dist/']
-sources = [SOURCELOWER_TAR_GZ]
-
-allow_system_deps = [('Python', SYS_PYTHON_VERSION)]
-
-pyshortver = '.'.join(SYS_PYTHON_VERSION.split('.')[0:2])
-
-sanity_check_paths = {
-    'files': ['lib/pkgconfig/xcb-proto.pc'],
-    'dirs': ['lib/python%s/site-packages/xcbgen' % pyshortver]
-}
-
-moduleclass = 'devel'