diff --git a/deploy-script.sh b/deploy-script.sh
index f458a27..29a0c16 100755
--- a/deploy-script.sh
+++ b/deploy-script.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 if [ -z "$1" ] ; then
-  echo "deploy-script.sh: Error - Must supply script as argument"
+  echo 'deploy-script.sh: Error - Must supply script as argument'
   exit
 else
   _script="$1"
@@ -9,7 +9,7 @@ fi
 
 . ./config.sh
 
-cat config.sh "$_script" | ssh root@"$_url" "cat >/tmp/deploy-script.sh"
+cat config.sh "$_script" | ssh root@"$_url" 'cat >/tmp/deploy-script.sh'
 ssh root@"$_url" '/bin/bash /tmp/deploy-script.sh'
 ssh root@"$_url" '/bin/bash -c "rm /tmp/deploy-script.sh"'
 
diff --git a/dev-setup/hugo.sh b/dev-setup/hugo.sh
index d1bc607..0ba30ec 100755
--- a/dev-setup/hugo.sh
+++ b/dev-setup/hugo.sh
@@ -31,7 +31,7 @@ $_cmd_su "echo '/themes/' >> $_site_path/.gitignore"
 $_cmd_su "echo 'node_modules/' >> $_site_path/.gitignore"
 $_cmd_su "cd $_site_path && git add . && git commit -m 'initial commit'"
 
-echo "#!/bin/sh" > "$_serve_script_path"
+echo '#!/bin/sh' > "$_serve_script_path"
 echo 'echo "sudo required to bind to port 80"' >> "$_serve_script_path"
 echo "sudo hugo server -D --bind=0.0.0.0 --baseURL=http://$_url -p80" >> "$_serve_script_path"
 chown "$_user": "$_serve_script_path"
@@ -62,9 +62,9 @@ else
   _theme_path='No theme installed'
 fi
 
-echo ""
-echo "#################################################################################################"
-echo ""
+echo ''
+echo '#################################################################################################'
+echo ''
 tee $_site_path/README.txt << EOF
 Site directory:         $_site_path
 Theme directory:        $_theme_path
@@ -75,7 +75,7 @@ Build script:           $_build_script_path
 Server script:          $_serve_script_path
 Server URL:             http://$_url
 EOF
-echo ""
-echo "#################################################################################################"
-echo ""
+echo ''
+echo '#################################################################################################'
+echo ''
 chown "$_user": "$_site_path/README.txt"
diff --git a/dev-setup/node.sh b/dev-setup/node.sh
index fec5566..1bb6e36 100755
--- a/dev-setup/node.sh
+++ b/dev-setup/node.sh
@@ -5,7 +5,7 @@ set -e
 if command -v apt-get ; then
   apt-get -y install gnupg
 else
-  echo "Error - no package installer found."
+  echo 'Error - no package installer found.'
   exit 1
 fi
 
@@ -17,5 +17,5 @@ tar -xJvf node-"$_node_version"-"$_node_distro".tar.xz -C /usr/local/lib/nodejs
 echo "PATH=/usr/local/lib/nodejs/node-$_node_version-$_node_distro/bin:$PATH" >> /home/"$_user"/.profile
 
 curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
-echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
+echo 'deb https://dl.yarnpkg.com/debian/ stable main' | sudo tee /etc/apt/sources.list.d/yarn.list
 apt-get update && sudo apt-get -y install yarn
diff --git a/dev-setup/nvim.sh b/dev-setup/nvim.sh
index d497b9f..9e6e1f5 100755
--- a/dev-setup/nvim.sh
+++ b/dev-setup/nvim.sh
@@ -17,7 +17,7 @@ if command -v apt-get ; then
   mv /tmp/neovim/runtime /usr/local/share/nvim/runtime
   mv /tmp/neovim/build/bin/nvim /usr/local/bin/nvim
 else
-  echo "Error - no package installer found."
+  echo 'Error - no package installer found.'
   exit 1
 fi
 
diff --git a/user.sh b/user.sh
index 7939c0e..58062dc 100755
--- a/user.sh
+++ b/user.sh
@@ -14,7 +14,7 @@ chage -d 0 "$_user"
 if command -v apt-get ; then
   apt-get update && apt-get -y upgrade && apt-get -y install sudo git
 else
-  echo "Error - no package installer found."
+  echo 'Error - no package installer found.'
   exit 1
 fi