diff --git a/qiime2/filter_some_features.sh b/qiime2/filter_some_features.sh
new file mode 100644
index 0000000..ecf0f6e
--- /dev/null
+++ b/qiime2/filter_some_features.sh
@@ -0,0 +1,131 @@
+#!/usr/bin/env bash
+
+#$ -cwd
+#$ -r n
+#$ -j y
+#$ -m ea
+#$ -M danielsg@email.chop.edu
+#$ -l h_vmem=50G
+#$ -l m_mem_free=20G
+
+set -x
+set -e
+#set -u
+
+source ~/.bashrc
+conda activate qiime2-2019.4
+
+if [ $# -ne 1 ]; then
+	echo "Usage: $0 MAPPING_FP"
+    echo "MAPPING_FP is the mapping file for Qiime2"
+    echo "Data files should be in a directory named "data_files""
+	exit 1
+fi
+
+MAPPING_FP=$1
+WORK_DIR="/mnt/isilon/microbiome/analysis/danielsg/sehgal_run_6"
+
+# See https://www.ostricher.com/2014/10/the-right-way-to-get-the-directory-of-a-bash-script/
+SOURCE_REL="${BASH_SOURCE[0]}"
+SOURCE_ABS=$(readlink -f "${SOURCE_REL}")
+SOURCE_DIR=$(dirname "${SOURCE_ABS}")
+
+### PATH TO Ceylan's CODE TO COMBINE I1 and I2
+INDEX1_INDEX2_COMBINE_SCRIPT="${SOURCE_DIR}/combine_barcodes.py"
+
+## Taxonomy classifier setup. Two classifiers are currently available:
+## classifiers trained on full length and on 515F/806R region of Greengenes 13_8 99% OTUs
+## These can be downloaded from https://data.qiime2.org/2017.9/common/gg-13-8-99-nb-classifier.qza (full length)
+## or https://data.qiime2.org/2017.9/common/gg-13-8-99-515-806-nb-classifier.qza (515F/806R region)
+
+#CLASSIFIER_FP="${HOME}/gg-13-8-99-nb-classifier.qza"
+#CLASSIFIER_FP="gg-13-8-99-515-806-nb-classifier.qza" ## used for V4 region
+CLASSIFIER_FP="${WORK_DIR}/gg-13-8-99-27-338-nb-classifier.qza" ## trained for V1V2 region truncated at 350 bp
+
+DATA_DIR="${WORK_DIR}/Data"
+
+#EMP_PAIRED_END_SEQUENCES_DIR="${DATA_DIR}/emp_paired_end_sequences"
+#DATA_DIR="${DATA_DIR}/data_files"
+DEMUX_DIR="${DATA_DIR}/demux_results"
+DENOISE_DIR="${DATA_DIR}/denoising_results"
+METRIC_DIR="${DATA_DIR}/core_metrics_results"
+
+qiime taxa filter-table \
+  --i-table "${DENOISE_DIR}/table.qza" \
+  --i-taxonomy "${DENOISE_DIR}/taxonomy.qza" \
+  --p-exclude "Corynebacterium,Propionibacterium,Streptococcus,Acidovorax,Bradyrhizobium,Comamonas,Pelomonas,Pseudomonas,Ralstonia" \
+  --o-filtered-table "${DENOISE_DIR}/table-no-contaminants.qza"
+#
+#qiime feature-table summarize \
+#      --i-table "${DENOISE_DIR}/table-no-contaminants.qza" \
+#      --o-visualization "${DENOISE_DIR}/table-no-contaminants.qzv" \
+#      --m-sample-metadata-file subset_metadata.tsv
+#
+qiime tools export \
+      --input-path "${DENOISE_DIR}/table-no-contaminants.qza" \
+      --output-path "${DENOISE_DIR}/table-no-contaminants"
+
+qiime diversity alpha-phylogenetic \
+      --i-phylogeny "${DENOISE_DIR}/rooted-tree.qza" \
+      --i-table "${DENOISE_DIR}/table-no-contaminants.qza" \
+      --p-metric faith_pd \
+      --o-alpha-diversity "${METRIC_DIR}/faith_pd_vector_no_contam.qza"
+
+qiime tools export \
+      --input-path "${METRIC_DIR}/faith_pd_vector_no_contam.qza" \
+      --output-path "${METRIC_DIR}/faith_no_contam"
+
+qiime diversity beta-phylogenetic \
+      --i-phylogeny "${DENOISE_DIR}/rooted-tree.qza" \
+      --i-table "${DENOISE_DIR}/table-no-contaminants.qza" \
+      --p-metric weighted_unifrac \
+      --o-distance-matrix "${METRIC_DIR}/weighted_unifrac_distance_matrix_no_contam.qza"
+
+qiime tools export \
+  --input-path "${METRIC_DIR}/weighted_unifrac_distance_matrix_no_contam.qza" \
+  --output-path "${METRIC_DIR}/wu_no_contam"
+
+qiime diversity beta-phylogenetic \
+      --i-phylogeny "${DENOISE_DIR}/rooted-tree.qza" \
+      --i-table "${DENOISE_DIR}/table-no-contaminants.qza" \
+      --p-metric unweighted_unifrac \
+      --o-distance-matrix "${METRIC_DIR}/unweighted_unifrac_distance_matrix_no_contam.qza"
+
+qiime tools export \
+  --input-path "${METRIC_DIR}/unweighted_unifrac_distance_matrix_no_contam.qza" \
+  --output-path "${METRIC_DIR}/uu_no_contam"
+
+###=====================
+###  BIOM CONVERT
+###=====================
+if [ ! -e "${DENOISE_DIR}/table-no-contaminants/feature-table.tsv" ]; then
+    biom convert \
+      -i "${DENOISE_DIR}/table-no-contaminants/feature-table.biom" \
+      -o "${DENOISE_DIR}/table-no-contaminants/feature-table.tsv" \
+      --to-tsv
+fi
+
+cd "${DENOISE_DIR}"
+
+cp taxonomy/taxonomy.tsv biom-taxonomy.tsv
+
+# had to vim biom-taxonomy.tsv and add 
+# "#OTUID	taxonomy	confidence" (without quotes)
+# line to make it recognize the header and correctly add the taxonomy
+# see here: https://forum.qiime2.org/t/exporting-and-modifying-biom-tables-e-g-adding-taxonomy-annotations/3630
+
+biom add-metadata \
+    -i table-no-contaminants/feature-table.biom \
+    -o table-with-taxonomy.biom \
+    --observation-metadata-fp biom-taxonomy.tsv \
+    --sc-separated taxonomy
+
+biom convert \
+    -i table-with-taxonomy.biom \
+    -o table-with-taxa.tsv \
+    --to-tsv --header-key taxonomy
+
+echo "****"
+echo "Done!"
+echo "If nothing happened,"
+echo "You may already have result files, check your directories!"
diff --git a/qiime2/qiime2_pipeline.bash b/qiime2/qiime2_pipeline.bash
index 3db2045..f7ba01b 100755
--- a/qiime2/qiime2_pipeline.bash
+++ b/qiime2/qiime2_pipeline.bash
@@ -2,10 +2,6 @@
 
 set -x
 set -e
-#set -u
-
-#source ~/.bashrc
-#conda activate qiime2-2018.11
 
 if [ $# -ne 1 ]; then
 	echo "Usage: $0 MAPPING_FP"
@@ -15,7 +11,8 @@ if [ $# -ne 1 ]; then
 fi
 
 MAPPING_FP=$1
-WORK_DIR="$(dirname ${MAPPING_FP})"
+#PRJ_DIR set in run_qiime2.sh
+WORK_DIR="${PRJ_DIR}/Data"
 
 # See https://www.ostricher.com/2014/10/the-right-way-to-get-the-directory-of-a-bash-script/
 SOURCE_REL="${BASH_SOURCE[0]}"
@@ -23,14 +20,19 @@ SOURCE_ABS=$(readlink -f "${SOURCE_REL}")
 SOURCE_DIR=$(dirname "${SOURCE_ABS}")
 
 ### PATH TO Ceylan's CODE TO COMBINE I1 and I2
-INDEX1_INDEX2_COMBINE_SCRIPT="$(dirname ${SOURCE_DIR})/combine_barcodes.py"
+INDEX1_INDEX2_COMBINE_SCRIPT="${SOURCE_DIR}/combine_barcodes.py"
+
+if [ ! -e $INDEX1_INDEX2_COMBINE_SCRIPT ]; then
+    echo "Cant find combine_barcodes script here: $INDEX1_INDEX2_COMBINE_SCRIPT"
+    exit 1
+fi
 
 ## Taxonomy classifier setup. Two classifiers are currently available:
 ## classifiers trained on full length and on 515F/806R region of Greengenes 13_8 99% OTUs
 ## These can be downloaded from https://data.qiime2.org/2017.9/common/gg-13-8-99-nb-classifier.qza (full length)
 ## or https://data.qiime2.org/2017.9/common/gg-13-8-99-515-806-nb-classifier.qza (515F/806R region)
 
-CLASSIFIER_FP="gg-13-8-99-nb-classifier.qza"
+CLASSIFIER_FP="${PRJ_DIR}/gg-13-8-99-nb-classifier.qza"
 #CLASSIFIER_FP="gg-13-8-99-515-806-nb-classifier.qza" ## used for V4 region
 #CLASSIFIER_FP="gg-13-8-99-27-338-nb-classifier.qza" ## trained for V1V2 region truncated at 350 bp
 
diff --git a/qiime2/run_qiime2.sh b/qiime2/run_qiime2.sh
index 7529c23..99a799e 100644
--- a/qiime2/run_qiime2.sh
+++ b/qiime2/run_qiime2.sh
@@ -9,6 +9,10 @@
 #$ -l m_mem_free=20G
 
 source ~/.bashrc
-conda activate qiime2-2018.11
+conda activate qiime2-2019.4
 
-./qiime2_pipeline.bash Robinson_Run_1_Metadata.tsv
+export PRJ_DIR="/mnt/isilon/microbiome/analysis/danielsg/sehgal_run_6"
+
+export METADATA="${PRJ_DIR}/Data/sehgal_run_6_mapping_file.tsv"
+
+./qiime2_pipeline.bash $METADATA