Add bash remediation for sudo_remove_nopasswd.

linux_os/guide/system/software/sudo/sudo_remove_nopasswd/bash/shared.sh

@@ -0,0 +1,17 @@
+# platform = multi_platform_all
+# reboot = false
+# strategy = restrict
+# complexity = low
+# disruption = low
+
+for f in $( ls /etc/sudoers /etc/sudoers.d/* 2> /dev/null ) ; do
+  nopasswd_list=$(grep -P '^(?!#).*[\s]+NOPASSWD[\s]*\:.*$' $f | uniq )
+  if ! test -z "$nopasswd_list"; then 
+    while IFS= read -r nopasswd_entry; do
+      # comment out "NOPASSWD:" matches to preserve user data
+      sed -i "s/^${nopasswd_entry}$/# &/g" $f
+    done <<< "$nopasswd_list"
+
+    /usr/sbin/visudo -cf $f &> /dev/null || echo "Fail to validate $f with visudo"
+  fi
+done