diff --git a/thermal/dump_thermal.sh b/thermal/dump_thermal.sh
index 2b87da9..288d34d 100644
--- a/thermal/dump_thermal.sh
+++ b/thermal/dump_thermal.sh
@@ -1,46 +1,46 @@
 #!/vendor/bin/sh
 
-echo "Temperatures"
+echo 'Temperatures'
 for f in /sys/class/thermal/thermal* ; do
-  printf "%s: %s\n" `cat $f/type` `cat $f/temp`
+  echo `cat $f/type`: `cat $f/temp`
 done
 
-echo "Cooling Device Current State"
+echo 'Cooling Device Current State'
 for f in /sys/class/thermal/cooling* ; do
-  printf "%s: %s\n" `cat $f/type` `cat $f/cur_state`
+  echo `cat $f/type`: `cat $f/cur_state`
 done
 
-echo "Cooling Device User Vote State"
+echo 'Cooling Device User Vote State'
 for f in /sys/class/thermal/cooling* ; do
-  if [ ! -f $f/user_vote ]; then continue; fi;
-  printf "%s: %s\n" `cat $f/type` `cat $f/user_vote`
+  if ! [ -r $f/user_vote ]; then continue; fi;
+  echo `cat $f/type`: `cat $f/user_vote`
 done
 
-echo "Cooling Device Time in State"
+echo 'Cooling Device Time in State'
 for f in /sys/class/thermal/cooling* ; do
-  printf "%s: %s\n" `cat $f/type` `cat $f/stats/time_in_state_ms`
+  echo `cat $f/type`: `cat $f/stats/time_in_state_ms`
 done
 
-echo "Cooling Device Trans Table"
+echo 'Cooling Device Trans Table'
 for f in /sys/class/thermal/cooling* ; do
-  printf "%s: %s\n" `cat $f/type` `cat $f/stats/trans_table`
+  echo `cat $f/type`: `cat $f/stats/trans_table`
 done
 
-echo "Cooling Device State2Power Table"
+echo 'Cooling Device State2Power Table'
 for f in /sys/class/thermal/cooling* ; do
-  if [ ! -f $f/state2power_table ]; then continue; fi;
-  printf "%s: %s\n" `cat $f/type` `cat $f/state2power_table`
+  if ! [ -r $f/state2power_table ]; then continue; fi;
+  echo `cat $f/type`: `cat $f/state2power_table`
 done
 
-echo "TMU state:"
+echo 'TMU state:'
 cat /sys/module/gs_thermal/parameters/tmu_reg_dump_state
-echo "TMU current temperature:"
+echo 'TMU current temperature:'
 cat /sys/module/gs_thermal/parameters/tmu_reg_dump_current_temp
-echo "TMU_TOP rise thresholds:"
+echo 'TMU_TOP rise thresholds:'
 cat /sys/module/gs_thermal/parameters/tmu_top_reg_dump_rise_thres
-echo "TMU_TOP fall thresholds:"
+echo 'TMU_TOP fall thresholds:'
 cat /sys/module/gs_thermal/parameters/tmu_top_reg_dump_fall_thres
-echo "TMU_SUB rise thresholds:"
+echo 'TMU_SUB rise thresholds:'
 cat /sys/module/gs_thermal/parameters/tmu_sub_reg_dump_rise_thres
-echo "TMU_SUB fall thresholds:"
+echo 'TMU_SUB fall thresholds:'
 cat /sys/module/gs_thermal/parameters/tmu_sub_reg_dump_fall_thres