diff --git a/egs/chime4/s5_1ch_track/local/run_beamform_2ch_track.sh b/egs/chime4/s5_1ch_track/local/run_beamform_2ch_track.sh
index 6cb43de93..29d7ee0ff 100755
--- a/egs/chime4/s5_1ch_track/local/run_beamform_2ch_track.sh
+++ b/egs/chime4/s5_1ch_track/local/run_beamform_2ch_track.sh
@@ -36,7 +36,6 @@ export PATH=${PATH}:$BEAMFORMIT
 set -e
 set -u
 set -o pipefail
-#set -x
 
 mkdir -p $odir
 mkdir -p $wdir/log
diff --git a/egs/chime4/s5_1ch_track/local/run_beamform_6ch_track.sh b/egs/chime4/s5_1ch_track/local/run_beamform_6ch_track.sh
index 8e531e8d5..92e7b9570 100755
--- a/egs/chime4/s5_1ch_track/local/run_beamform_6ch_track.sh
+++ b/egs/chime4/s5_1ch_track/local/run_beamform_6ch_track.sh
@@ -38,7 +38,6 @@ export PATH=${PATH}:$BEAMFORMIT
 set -e
 set -u
 set -o pipefail
-#set -x
 
 mkdir -p $odir
 mkdir -p $wdir/log
diff --git a/egs/chime4/s5_1ch_track/local/run_dnn.sh b/egs/chime4/s5_1ch_track/local/run_dnn.sh
index 381d2f8d4..affeea951 100755
--- a/egs/chime4/s5_1ch_track/local/run_dnn.sh
+++ b/egs/chime4/s5_1ch_track/local/run_dnn.sh
@@ -37,7 +37,6 @@ enhan=$1
 set -e
 set -u
 set -o pipefail
-set -x
 
 # check whether run_init is executed
 if [ ! -d data/lang ]; then
diff --git a/egs/chime4/s5_1ch_track/local/run_dnn_recog.sh b/egs/chime4/s5_1ch_track/local/run_dnn_recog.sh
index 708e4c84a..5c9c1010f 100755
--- a/egs/chime4/s5_1ch_track/local/run_dnn_recog.sh
+++ b/egs/chime4/s5_1ch_track/local/run_dnn_recog.sh
@@ -40,7 +40,6 @@ mdir=$2
 set -e
 set -u
 set -o pipefail
-set -x
 
 # check data/loca/data
 if [ ! -d $mdir/data/local/data ]; then
diff --git a/egs/chime4/s5_1ch_track/local/run_gmm.sh b/egs/chime4/s5_1ch_track/local/run_gmm.sh
index 74cfd98fb..bedd6de51 100755
--- a/egs/chime4/s5_1ch_track/local/run_gmm.sh
+++ b/egs/chime4/s5_1ch_track/local/run_gmm.sh
@@ -42,7 +42,6 @@ chime4_data=$3
 set -e
 set -u
 set -o pipefail
-set -x
 
 # check whether run_init is executed
 if [ ! -d data/lang ]; then
diff --git a/egs/chime4/s5_1ch_track/local/run_gmm_recog.sh b/egs/chime4/s5_1ch_track/local/run_gmm_recog.sh
index 1b34c84b7..8824aa255 100755
--- a/egs/chime4/s5_1ch_track/local/run_gmm_recog.sh
+++ b/egs/chime4/s5_1ch_track/local/run_gmm_recog.sh
@@ -42,7 +42,6 @@ mdir=$3
 set -e
 set -u
 set -o pipefail
-set -x
 
 # check data/loca/data
 if [ ! -d $mdir/data/local/data ]; then
diff --git a/egs/chime4/s5_1ch_track/local/run_init.sh b/egs/chime4/s5_1ch_track/local/run_init.sh
index 48e2972c1..3cafd7fba 100755
--- a/egs/chime4/s5_1ch_track/local/run_init.sh
+++ b/egs/chime4/s5_1ch_track/local/run_init.sh
@@ -39,7 +39,6 @@ wsj0_data=$chime4_data/data/WSJ0 # directory of WSJ0 in Chime4. You can also spe
 set -e
 set -u
 set -o pipefail
-set -x
 
 if [ $stage -le 0 ]; then
   # process for clean speech and making LMs etc. from original WSJ0