diff --git a/cluster/addons/addon-manager/kube-addon-update.sh b/cluster/addons/addon-manager/kube-addon-update.sh
index 87d47869ce..b8c294fc85 100755
--- a/cluster/addons/addon-manager/kube-addon-update.sh
+++ b/cluster/addons/addon-manager/kube-addon-update.sh
@@ -23,12 +23,12 @@
 
 
 # LIMITATIONS
-# 1. controllers are not updated unless their name is changed
+# 1. Controllers are not updated unless their name is changed
 # 3. Services will not be updated unless their name is changed,
 #    but for services we actually want updates without name change.
 # 4. Json files are not handled at all. Currently addons must be
 #    in yaml files
-# 5. exit code is probably not always correct (I haven't checked
+# 5. Exit code is probably not always correct (I haven't checked
 #    carefully if it works in 100% cases)
 # 6. There are no unittests
 # 8. Will not work if the total length of paths to addons is greater than
@@ -36,9 +36,9 @@
 # 9. Performance issue: yaml files are read many times in a single execution.
 
 # cosmetic improvements to be done
-# 1. improve the log function; add timestamp, file name, etc.
-# 2. logging doesn't work from files that print things out.
-# 3. kubectl prints the output to stderr (the output should be captured and then
+# 1. Improve the log function; add timestamp, file name, etc.
+# 2. Logging doesn't work from files that print things out.
+# 3. Kubectl prints the output to stderr (the output should be captured and then
 #    logged)
 
 # global config
diff --git a/cluster/common.sh b/cluster/common.sh
index 561ef82da0..66ededf89e 100755
--- a/cluster/common.sh
+++ b/cluster/common.sh
@@ -463,7 +463,7 @@ function stage-images() {
   done
 
   kube::util::wait-for-jobs || {
-    kube::log::error "unable to push images. see ${temp_dir}/*.log for more info."
+    kube::log::error "unable to push images. See ${temp_dir}/*.log for more info."
     return 1
   }
 
diff --git a/cluster/gce/gci/configure-helper.sh b/cluster/gce/gci/configure-helper.sh
index 891a34e2e1..e58c9f22b0 100644
--- a/cluster/gce/gci/configure-helper.sh
+++ b/cluster/gce/gci/configure-helper.sh
@@ -103,7 +103,7 @@ EOF
   # files. Whenever logrotate is ran, this config will:
   # * rotate the log file if its size is > 100Mb OR if one day has elapsed
   # * save rotated logs into a gzipped timestamped backup
-  # * log file timestamp (controlled by 'dateformat') includes seconds too. this
+  # * log file timestamp (controlled by 'dateformat') includes seconds too. This
   #   ensures that logrotate can generate unique logfiles during each rotation
   #   (otherwise it skips rotation if 'maxsize' is reached multiple times in a
   #   day).
diff --git a/cluster/saltbase/salt/docker/init.sls b/cluster/saltbase/salt/docker/init.sls
index dcdeaad605..6af992ddf7 100644
--- a/cluster/saltbase/salt/docker/init.sls
+++ b/cluster/saltbase/salt/docker/init.sls
@@ -471,7 +471,7 @@ docker:
 # is managing Docker restart we should probably just delete this whole thing
 # but the kubernetes components use salt 'require' to set up a dag, and that
 # complicated and scary to unwind.
-# On AWS, we use a trick now... we don't start the docker service through Salt.
+# On AWS, we use a trick now... We don't start the docker service through Salt.
 # Kubelet or our health checker will start it.  But we use service.enabled,
 # so we still have a `service: docker` node for our DAG.
 {% if grains.cloud is defined and grains.cloud == 'aws' %}
diff --git a/cluster/ubuntu/util.sh b/cluster/ubuntu/util.sh
index 8b34052bf9..8957bbcb50 100755
--- a/cluster/ubuntu/util.sh
+++ b/cluster/ubuntu/util.sh
@@ -58,7 +58,7 @@ function setClusterInfo() {
         NODE_IPS="$NODE_IPS,$nodeIP"
       fi
     else
-      echo "unsupported role for ${i}. please check"
+      echo "unsupported role for ${i}. Please check"
       exit 1
     fi
 
@@ -156,7 +156,7 @@ function verify-cluster() {
       verify-master
       verify-node "$i"
     else
-      echo "unsupported role for ${i}. please check"
+      echo "unsupported role for ${i}. Please check"
       exit 1
     fi
 
@@ -978,7 +978,7 @@ function kube-push() {
     elif [[ "${roles_array[${ii}]}" == "ai" ]]; then
       provision-masterandnode
     else
-      echo "unsupported role for ${i}. please check"
+      echo "unsupported role for ${i}. Please check"
       exit 1
     fi
     ((ii=ii+1))
diff --git a/cluster/vsphere/util.sh b/cluster/vsphere/util.sh
index e32379670c..4b3e70b020 100755
--- a/cluster/vsphere/util.sh
+++ b/cluster/vsphere/util.sh
@@ -220,7 +220,7 @@ function kube-run {
 
 #
 # run the command remotely and check if the specific kube artifact is running or not.
-# keep checking till the you hit the timeout. default timeout 300s
+# keep checking till the you hit the timeout. Default timeout 300s
 #
 # Usage:
 #   kube_check 10.0.0.1 cmd timeout
@@ -263,7 +263,7 @@ function kube-check {
 }
 
 #
-# verify if salt master is up. check 30 times and then echo out bad output and return 0
+# verify if salt master is up. Check 30 times and then echo out bad output and return 0
 #
 # Usage:
 #   remote-pgrep 10.0.0.1 salt-master