diff --git a/example.sh b/example.sh
index eff4ff2..3c16277 100755
--- a/example.sh
+++ b/example.sh
@@ -43,7 +43,7 @@ read -r -d '' __helptext <<-'EOF' || true # exits non-zero when EOF encountered
  parsed and will be added as-is to the help.
 EOF
 
-# shellcheck source=./main.sh
+# shellcheck source=main.sh
 source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/main.sh"
 
 
diff --git a/src/ini_val.sh b/src/ini_val.sh
index 22f4bf7..86cf22a 100755
--- a/src/ini_val.sh
+++ b/src/ini_val.sh
@@ -35,13 +35,15 @@ function ini_val() {
   local key=""
 
   # Split on . for section. However, section is optional
-  read section key <<<$(IFS="."; echo ${sectionkey})
+  IFS='.' read -r section key <<< "${sectionkey}"
   if [ -z "${key}" ]; then
     key="${section}"
     section=""
   fi
 
-  local current=$(awk -F "${delim}" "/^${key}${delim}/ {for (i=2; i<NF; i++) printf \$i \" \"; print \$NF}" "${file}")
+  local current
+  current=$(awk -F "${delim}" "/^${key}${delim}/ {for (i=2; i<NF; i++) printf \$i \" \"; print \$NF}" "${file}")
+
   if [ -z "${val}" ]; then
     # get a value
     echo "${current}"
diff --git a/src/megamount.sh b/src/megamount.sh
index 4915c34..7e46fbc 100644
--- a/src/megamount.sh
+++ b/src/megamount.sh
@@ -28,19 +28,28 @@
 # You are not obligated to bundle the LICENSE file with your b3bp projects as long
 # as you leave these references intact in the header comments of your source files.
 
-__dir=$(cd `dirname "${BASH_SOURCE[0]}"` && pwd)
+__dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# shellcheck source=src/parse_url.sh
 source "${__dir}/parse_url.sh"
 
 function megamount () {
   local url="${1}"
   local target="${2}"
 
-  local proto=$(parse_url "${url}" "proto")
-  local user=$(parse_url "${url}" "user")
-  local pass=$(parse_url "${url}" "pass")
-  local host=$(parse_url "${url}" "host")
-  local port=$(parse_url "${url}" "port")
-  local path=$(parse_url "${url}" "path")
+  local proto
+  local user
+  local pass
+  local host
+  local port
+  local path
+
+  proto=$(parse_url "${url}" "proto")
+  user=$(parse_url "${url}" "user")
+  pass=$(parse_url "${url}" "pass")
+  host=$(parse_url "${url}" "host")
+  port=$(parse_url "${url}" "port")
+  path=$(parse_url "${url}" "path")
 
   (umount -lf "${target}" || umount -f "${target}") > /dev/null 2>&1 || true
   mkdir -p "${target}"
diff --git a/src/parse_url.sh b/src/parse_url.sh
index 09bac4b..5e004c7 100644
--- a/src/parse_url.sh
+++ b/src/parse_url.sh
@@ -30,15 +30,25 @@ function parse_url() {
   local parse="${1}"
   local need="${2:-}"
 
-  local proto="$(echo $parse | grep :// | sed -e's,^\(.*://\).*,\1,g')"
-  local url="$(echo ${parse/$proto/})"
-  local userpass="$(echo $url | grep @ | cut -d@ -f1)"
-  local user="$(echo $userpass | grep : | cut -d: -f1)"
-  local pass="$(echo $userpass | grep : | cut -d: -f2)"
-  local hostport="$(echo ${url/$userpass@/} | cut -d/ -f1)"
-  local host="$(echo $hostport | grep : | cut -d: -f1)"
-  local port="$(echo $hostport | grep : | cut -d: -f2)"
-  local path="$(echo $url | grep / | cut -d/ -f2-)"
+  local proto
+  local url
+  local userpass
+  local user
+  local pass
+  local hostport
+  local host
+  local port
+  local path
+
+  proto="$(echo "$parse" | grep :// | sed -e's,^\(.*://\).*,\1,g')"
+  url="${parse/$proto/}"
+  userpass="$(echo "$url" | grep @ | cut -d@ -f1)"
+  user="$(echo "$userpass" | grep : | cut -d: -f1)"
+  pass="$(echo "$userpass" | grep : | cut -d: -f2)"
+  hostport="$(echo "${url/$userpass@/}" | cut -d/ -f1)"
+  host="$(echo "$hostport" | grep : | cut -d: -f1)"
+  port="$(echo "$hostport" | grep : | cut -d: -f2)"
+  path="$(echo "$url" | grep / | cut -d/ -f2-)"
 
   [ -z "${user}" ] && user="${userpass}"
   [ -z "${host}" ] && host="${hostport}"
@@ -50,7 +60,7 @@ function parse_url() {
   fi
 
   if [ -n "${need}" ]; then
-    echo ${!need}
+    echo "${!need}"
   else
     echo ""
     echo " Use second argument to return just 1 variable."
diff --git a/src/templater.sh b/src/templater.sh
index 7046b23..344e9d2 100755
--- a/src/templater.sh
+++ b/src/templater.sh
@@ -48,6 +48,7 @@ function templater() {
 
   # cat "${templateDst}"
 
+  # shellcheck disable=SC2016
   if grep '${' "${templateDst}" && [ "${ALLOW_REMAINDERS}" = "0" ]; then
     echo "ERROR: Unable to replace the above template vars"
     exit 1
diff --git a/test/acceptance.sh b/test/acceptance.sh
index 47f22c0..e7694d6 100755
--- a/test/acceptance.sh
+++ b/test/acceptance.sh
@@ -201,11 +201,8 @@ if [[ "$(command -v shellcheck)" ]]; then
   failed="false"
 
   while IFS=$'\n' read -r file; do
-    lint="false"
-    [[ "${file}" = "./main.sh" ]] && lint="true"
-    [[ "${file}" = "./example.sh" ]] && lint="true"
-    [[ "${file}" = "./test/acceptance.sh" ]] && lint="true"
-    [[ "${lint}" != "true" ]] && continue
+    [[ "${file}" =~ ^\./node_modules/ ]] && continue
+    [[ "${file}" =~ ^\./website/\.lanyon/ ]] && continue
 
     echo -n "    ${file}.. "
 
diff --git a/test/scenario/ini_val/run.sh b/test/scenario/ini_val/run.sh
index e042912..be5b2ae 100644
--- a/test/scenario/ini_val/run.sh
+++ b/test/scenario/ini_val/run.sh
@@ -7,8 +7,8 @@ set -o nounset
 # Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 __file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__base="$(basename "${__file}" .sh)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
 # echo "ACCPTST:STDIO_REPLACE_DATETIMES"
 
@@ -29,7 +29,10 @@ rm -f dummy.ini
 
 # Use as include:
 cp -f data.ini dummy.ini
-source ${__root}/src/ini_val.sh
+
+# shellcheck source=main.sh
+source "${__root}/src/ini_val.sh"
+
 echo "--> function: Read 3 values"
 ini_val ./dummy.ini orphan
 ini_val ./dummy.ini connection.host
diff --git a/test/scenario/main-debug/run.sh b/test/scenario/main-debug/run.sh
index 9517934..eda5bce 100644
--- a/test/scenario/main-debug/run.sh
+++ b/test/scenario/main-debug/run.sh
@@ -4,11 +4,8 @@ set -o errexit
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
 echo "ACCPTST:STDIO_REPLACE_DATETIMES"
 
diff --git a/test/scenario/main-help/run.sh b/test/scenario/main-help/run.sh
index f7b6ac7..b600c25 100755
--- a/test/scenario/main-help/run.sh
+++ b/test/scenario/main-help/run.sh
@@ -4,11 +4,8 @@ set -o errexit
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
 echo "ACCPTST:STDIO_REPLACE_DATETIMES"
 
diff --git a/test/scenario/main-longopt/run.sh b/test/scenario/main-longopt/run.sh
index 23ec6c5..3d2cc77 100644
--- a/test/scenario/main-longopt/run.sh
+++ b/test/scenario/main-longopt/run.sh
@@ -4,14 +4,13 @@
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
 echo "ACCPTST:STDIO_REPLACE_DATETIMES"
 
-(env LOG_LEVEL=6 bash "${__root}/main.sh" --file /tmp/x;
-env LOG_LEVEL=6 bash "${__root}/main.sh" --file=/tmp/x;
-env LOG_LEVEL=6 bash "${__root}/main.sh" -f /tmp/x) 2>&1 |grep arg_f
+(
+  env LOG_LEVEL=6 bash "${__root}/main.sh" --file /tmp/x;
+  env LOG_LEVEL=6 bash "${__root}/main.sh" --file=/tmp/x;
+  env LOG_LEVEL=6 bash "${__root}/main.sh" -f /tmp/x
+) 2>&1 |grep arg_f
diff --git a/test/scenario/main-nocolor/run.sh b/test/scenario/main-nocolor/run.sh
index 07e8012..8abf1cd 100644
--- a/test/scenario/main-nocolor/run.sh
+++ b/test/scenario/main-nocolor/run.sh
@@ -4,11 +4,8 @@ set -o errexit
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
 echo "ACCPTST:STDIO_REPLACE_DATETIMES"
 
diff --git a/test/scenario/main-usage-defaults/run.sh b/test/scenario/main-usage-defaults/run.sh
index cd8d1f8..018084d 100755
--- a/test/scenario/main-usage-defaults/run.sh
+++ b/test/scenario/main-usage-defaults/run.sh
@@ -4,13 +4,9 @@ set -o errexit
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
-# Set __usage and source main.sh
 read -r -d '' __usage <<-'EOF' || true # exits non-zero when EOF encountered
   -1 --one         Do one thing. Default="ONE"
                    More description.
@@ -28,6 +24,7 @@ EOF
 
 echo "ACCPTST:STDIO_REPLACE_DATETIMES"
 
+# shellcheck source=main.sh
 source "${__root}/main.sh"
 
 for argument in ${!arg_*}; do info "${argument}: ${!argument}"; done
diff --git a/test/scenario/main-usage-validation/run.sh b/test/scenario/main-usage-validation/run.sh
index e0cc98f..7525c03 100755
--- a/test/scenario/main-usage-validation/run.sh
+++ b/test/scenario/main-usage-validation/run.sh
@@ -1,16 +1,14 @@
 #!/usr/bin/env bash
+# shellcheck source=main.sh
+
 set -o pipefail
 set -o errexit
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
-# Set __usage and source main.sh
 read -r -d '' __usage <<-'EOF' || true # exits non-zero when EOF encountered
   -0 --zero        Do nothing.
   -1 --one         Do one thing. Required.
diff --git a/test/scenario/megamount/run.sh b/test/scenario/megamount/run.sh
index 5223965..517cff5 100644
--- a/test/scenario/megamount/run.sh
+++ b/test/scenario/megamount/run.sh
@@ -4,11 +4,8 @@ set -o errexit
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
 __sysTmpDir="${TMPDIR:-/tmp}"
 __sysTmpDir="${__sysTmpDir%/}" # <-- remove trailing slash on macosx
@@ -18,5 +15,7 @@ __sysTmpDir="${__sysTmpDir%/}" # <-- remove trailing slash on macosx
 
 bash "${__root}/src/megamount.sh" 'foobarfs://janedoe:abc123@192.168.0.1/documents' "${__sysTmpDir}/mnt/documents" || true
 
-source ${__root}/src/megamount.sh
+# shellcheck source=src/megamount.sh
+source "${__root}/src/megamount.sh"
+
 megamount 'foobarfs://janedoe:abc123@192.168.0.1/documents' "${__sysTmpDir}/mnt/documents"
diff --git a/test/scenario/parse_url/run.sh b/test/scenario/parse_url/run.sh
index dd11b19..47a18aa 100644
--- a/test/scenario/parse_url/run.sh
+++ b/test/scenario/parse_url/run.sh
@@ -4,15 +4,14 @@ set -o errexit
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
 bash "${__root}/src/parse_url.sh" 'http://johndoe:abc123@example.com:8080/index.html' pass
 bash "${__root}/src/parse_url.sh" 'http://johndoe:abc123@example.com:8080/index.html'
 
-source ${__root}/src/parse_url.sh
+# shellcheck source=src/parse_url.sh
+source "${__root}/src/parse_url.sh"
+
 parse_url 'http://johndoe:abc123@example.com:8080/index.html' pass
 parse_url 'http://johndoe:abc123@example.com:8080/index.html'
diff --git a/test/scenario/templater/run.sh b/test/scenario/templater/run.sh
index 129fcef..6355e17 100644
--- a/test/scenario/templater/run.sh
+++ b/test/scenario/templater/run.sh
@@ -4,11 +4,8 @@ set -o errexit
 set -o nounset
 # set -o xtrace
 
-# Set magic variables for current FILE & DIR
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-__file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
-__root="$(cd "$(dirname $(dirname $(dirname "${__dir}")))" && pwd)"
+__root="$(cd "$(dirname "$(dirname "$(dirname "${__dir}")")")" && pwd)"
 
 echo "--"
 env TARGET_HOST="127.0.0.1" bash "${__root}/src/templater.sh" ./app.template.cfg ./app.cfg
@@ -17,7 +14,10 @@ rm -f app.cfg
 
 echo "--"
 export TARGET_HOST="127.0.0.1"
-source ${__root}/src/templater.sh
+
+# shellcheck source=src/templater.sh
+source "${__root}/src/templater.sh"
+
 templater ./app.template.cfg ./app.cfg
 cat app.cfg
 rm -f app.cfg
diff --git a/website/_scripts/inject.sh b/website/_scripts/inject.sh
index 4dfe1db..5711e7a 100755
--- a/website/_scripts/inject.sh
+++ b/website/_scripts/inject.sh
@@ -30,7 +30,7 @@ set -o pipefail
 # Set magic variables for current file, directory, os, etc.
 __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 __file="${__dir}/$(basename "${BASH_SOURCE[0]}")"
-__base="$(basename ${__file} .sh)"
+__base="$(basename "${__file}" .sh)"
 
 # Offer the main template for download as http://bash3boilerplate.sh/main.sh
 cp -v main.sh website/
@@ -38,10 +38,10 @@ cp -v main.sh website/
 for doc in "README" "FAQ" "CHANGELOG"; do
   targetName="$(echo "${doc}" | awk '{print tolower($0)}')"
   permalink="/${targetName}/"
-  subtitle="$(tr '[:lower:]' '[:upper:]' <<< ${targetName:0:1})${targetName:1} | "
+  subtitle="$(tr '[:lower:]' '[:upper:]' <<< "${targetName:0:1}")${targetName:1} | "
   redirectFrom="/${doc}.md/"
   backLink="\n\n<a href=\"/\">&laquo; Home</a>"
-  if [ "${doc}" = "README" ]; then
+  if [[ "${doc}" = "README" ]]; then
     targetName="index"
     permalink="/"
     subtitle=""
@@ -49,7 +49,7 @@ for doc in "README" "FAQ" "CHANGELOG"; do
     backLink=""
   fi
 
-  cat <<EOF > website/${targetName}.md
+  cat <<EOF > "website/${targetName}.md"
 ---
 layout: default
 permalink: ${permalink}
@@ -60,14 +60,14 @@ warning: This page is generated by ${__base}.sh based on ${doc}.md, please don't
 EOF
   # If '<!--more-->' exists, only inject what comes after it, so you can have e.g. a ToC or buildbuttons
   # on GitHub, without that also rendering in the site (site may have its own ToC rendering for instance)
-  if grep '<!--more-->' ${doc}.md; then
-    cat ${doc}.md |sed -n -e '/<!--more-->/,$p' | tail -n +2 >> website/${targetName}.md
+  if grep '<!--more-->' "${doc}.md"; then
+    sed -n -e '/<!--more-->/,$p' "${doc}.md" | tail -n +2 >> "website/${targetName}.md"
   else
-    cat ${doc}.md >> website/${targetName}.md
+    cat "${doc}.md" >> "website/${targetName}.md"
   fi
 
   # Add a "<- Back Home" link, if any
-  echo -e $backLink >> website/${targetName}.md
+  echo -e $backLink >> "website/${targetName}.md"
 
   echo "--> written website/${targetName}.md"
 done