diff --git a/Scripts/Bash/Functions/Html/html_getActions.sh b/Scripts/Bash/Functions/Html/html_getActions.sh
index ed4236a..04ad590 100755
--- a/Scripts/Bash/Functions/Html/html_getActions.sh
+++ b/Scripts/Bash/Functions/Html/html_getActions.sh
@@ -59,7 +59,7 @@ function html_getActions {
                     case "$3" in
                         -f|--filter )
                             # Redefine regular expression.
-                            REGEX="$4"
+                            FLAG_FILTER="$4"
                             # Rotate positional parameters
                             shift 4
                             ;;
@@ -85,7 +85,7 @@ function html_getActions {
     fi
 
     # Redefine regular expression to match html files only.
-    REGEX=$(echo "${REGEX}.*\.(html|htm)")
+    FLAG_FILTER=$(echo "${FLAG_FILTER}.*\.(html|htm)")
 
     # Execute action name.
     if [[ $ACTIONNAM =~ "^${FUNCNAM}_[A-Za-z]+$" ]];then
diff --git a/Scripts/Bash/Functions/Locale/locale_doMessagesStatus.sh b/Scripts/Bash/Functions/Locale/locale_doMessagesStatus.sh
index 7ab522f..86f0544 100755
--- a/Scripts/Bash/Functions/Locale/locale_doMessagesStatus.sh
+++ b/Scripts/Bash/Functions/Locale/locale_doMessagesStatus.sh
@@ -71,7 +71,7 @@ function locale_doMessagesStatus {
         echo "$LOCALECODE | $LANG_NAME | $LANG_COUNTRY | $PO_STATUS | $PO_REVDATE | $PO_LASTAUTHOR"
 
     done \
-        | egrep -i $REGEX \
+        | egrep -i $FLAG_FILTER \
         | awk 'BEGIN {FS="|"; format ="%7s\t%-15s\t%-15s\t%-12s\t%-12s\t%-s\n"
                       printf "--------------------------------------------------------------------------------\n"
                       printf format, "'`gettext "Code"`'", " '`gettext "Language"`'", " '`gettext "Country"`'",\
diff --git a/Scripts/Bash/Functions/Locale/locale_getActions.sh b/Scripts/Bash/Functions/Locale/locale_getActions.sh
index 6b9586a..b94e55d 100644
--- a/Scripts/Bash/Functions/Locale/locale_getActions.sh
+++ b/Scripts/Bash/Functions/Locale/locale_getActions.sh
@@ -58,7 +58,7 @@ function locale_getActions {
                         -f|--filter )
 
                             # Redefine regular expression.
-                            REGEX="$3"
+                            FLAG_FILTER="$3"
 
                             # Rotate positional parameters
                             shift 3
diff --git a/Scripts/Bash/Functions/Render/Config/Translations/Identity/Brands/render.conf.sh b/Scripts/Bash/Functions/Render/Config/Translations/Identity/Brands/render.conf.sh
index 31edf1c..b8e3473 100755
--- a/Scripts/Bash/Functions/Render/Config/Translations/Identity/Brands/render.conf.sh
+++ b/Scripts/Bash/Functions/Render/Config/Translations/Identity/Brands/render.conf.sh
@@ -119,7 +119,7 @@ function render_loadConfig {
         # can reduce the amount of translation templates to process
         # using the string regex as pattern. 
         for FILE in $(find $TXT/Tpl -regextype posix-egrep \
-            -regex "^.+/$REGEX\.sed$" | sort );do
+            -regex "^.+/$FLAG_FILTER\.sed$" | sort );do
 
             # Define translation path.
             TRANSLATION=$FILE
diff --git a/Scripts/Bash/Functions/Render/render_doIdentityGroupByType.sh b/Scripts/Bash/Functions/Render/render_doIdentityGroupByType.sh
index 81db2ba..4cb7e79 100755
--- a/Scripts/Bash/Functions/Render/render_doIdentityGroupByType.sh
+++ b/Scripts/Bash/Functions/Render/render_doIdentityGroupByType.sh
@@ -115,7 +115,7 @@ function render_doIdentityGroupByType {
         # (without duplications).
         for FILE in $(find $ACTIONVAL -regextype posix-egrep -type f -regex ${PATTERNS[2]} \
             | sed -r 's!\.[[:alpha:]]{1,4}$!!' | sort | uniq \
-            | egrep $REGEX);do
+            | egrep $FLAG_FILTER);do
             FILES[$COUNT]="$FILE"
             COUNT=$(($COUNT + 1))
         done
diff --git a/Scripts/Bash/Functions/Render/render_doIdentityImageKsplash.sh b/Scripts/Bash/Functions/Render/render_doIdentityImageKsplash.sh
index 4b34e63..6c4d25f 100755
--- a/Scripts/Bash/Functions/Render/render_doIdentityImageKsplash.sh
+++ b/Scripts/Bash/Functions/Render/render_doIdentityImageKsplash.sh
@@ -32,7 +32,7 @@ function render_doIdentityImageKsplash {
     local KSPLASH_TOP=''
     local KSPLASH_PREVIEW=''
     local RELDIRS=$(find $ACTIONVAL -regextype posix-egrep -maxdepth 1 \
-        -type d -regex "^.*/${RELEASE_FORMAT}$" | egrep $REGEX)
+        -type d -regex "^.*/${RELEASE_FORMAT}$" | egrep $FLAG_FILTER)
 
     # Define font file used to render Preview.png bottom text.
     local KSPLASH_PREVIEW_FONT=/home/centos/artwork/trunk/Identity/Fonts/Ttf/DejaVuLGCSans-Bold.ttf
diff --git a/Scripts/Bash/Functions/Render/render_getActions.sh b/Scripts/Bash/Functions/Render/render_getActions.sh
index 1f3a393..c1148e9 100644
--- a/Scripts/Bash/Functions/Render/render_getActions.sh
+++ b/Scripts/Bash/Functions/Render/render_getActions.sh
@@ -71,7 +71,7 @@ function render_getActions {
             --filter )
 
                 # Redefine filter (regular expression) flag.
-                REGEX="$2"
+                FLAG_FILTER="$2"
                 
                 # Rotate positional parameters
                 shift 2
diff --git a/Scripts/Bash/Functions/Render/render_getActionsTranslations.sh b/Scripts/Bash/Functions/Render/render_getActionsTranslations.sh
index 68c2504..7d4510e 100755
--- a/Scripts/Bash/Functions/Render/render_getActionsTranslations.sh
+++ b/Scripts/Bash/Functions/Render/render_getActionsTranslations.sh
@@ -106,16 +106,16 @@ function render_getActionsTranslations {
     # release-specific directories.  Otherwise, all release-specific
     # translations directories available in the current location will
     # be affected.
-    if [[ $REGEX =~ "^${RELEASE_FORMAT}$" ]];then
-        RELEASES=$ACTIONVAL/$REGEX
+    if [[ $FLAG_FILTER =~ "^${RELEASE_FORMAT}$" ]];then
+        RELEASES=$ACTIONVAL/$FLAG_FILTER
 
     # Re-define releases using regular expression value. If you need
     # to create/update two or more release-specific directories (e.g.,
     # 5, 5.1, 5.2, and 6.0), you can use a command similar to
     # 'centos-art render --translation=./ --filter=5,5.1,5.2,6.0' to
     # create them all using just one command.
-    elif [[ $REGEX =~ "^(${RELEASE_FORMAT},?)+" ]];then
-        for RELEASE in $(echo $REGEX | tr ',' ' ');do
+    elif [[ $FLAG_FILTER =~ "^(${RELEASE_FORMAT},?)+" ]];then
+        for RELEASE in $(echo $FLAG_FILTER | tr ',' ' ');do
             RELEASES="$RELEASES $RELEASE"
         done
 
diff --git a/Scripts/Bash/Functions/Render/render_getFilesList.sh b/Scripts/Bash/Functions/Render/render_getFilesList.sh
index a731ce7..c6af32b 100644
--- a/Scripts/Bash/Functions/Render/render_getFilesList.sh
+++ b/Scripts/Bash/Functions/Render/render_getFilesList.sh
@@ -62,11 +62,11 @@ function render_getFilesList {
     
     fi
 
-    # Make regular expression (REGEX) variable local (to avoid
+    # Make regular expression (FLAG_FILTER) variable local (to avoid
     # concatenation the next time cli_getFilesList function be
     # called), and redefine it to match files with specific extensions
     # inside specific locations.
-    local REGEX="${REGEX}.*\.${EXTENSION}"
+    local FLAG_FILTER="${FLAG_FILTER}.*\.${EXTENSION}"
 
     # Define list of files to process.
     cli_getFilesList "$LOCATION"
diff --git a/Scripts/Bash/Functions/Shell/shell_getActions.sh b/Scripts/Bash/Functions/Shell/shell_getActions.sh
index f979956..3af39b8 100755
--- a/Scripts/Bash/Functions/Shell/shell_getActions.sh
+++ b/Scripts/Bash/Functions/Shell/shell_getActions.sh
@@ -62,7 +62,7 @@ function shell_getActions {
                     case "$3" in
                         --filter )
                             # Redefine regular expression.
-                            REGEX="$4"
+                            FLAG_FILTER="$4"
                             # Rotate positional parameters
                             shift 4
                             ;;
@@ -89,7 +89,7 @@ function shell_getActions {
     fi
 
     # Re-define regular expression to match shell files only.
-    REGEX=$(echo "${REGEX}.*\.(bash|shell|sh)")
+    FLAG_FILTER=$(echo "${FLAG_FILTER}.*\.(bash|shell|sh)")
 
     # Execute action name.
     if [[ $ACTIONNAM =~ "^${FUNCNAM}_[A-Za-z]+$" ]];then
diff --git a/Scripts/Bash/Functions/Svg/svg_getActions.sh b/Scripts/Bash/Functions/Svg/svg_getActions.sh
index 806fc84..2120ca0 100755
--- a/Scripts/Bash/Functions/Svg/svg_getActions.sh
+++ b/Scripts/Bash/Functions/Svg/svg_getActions.sh
@@ -65,7 +65,7 @@ function svg_getActions {
                         --filter )
 
                             # Redefine regular expression.
-                            REGEX="$4"
+                            FLAG_FILTER="$4"
 
                             # Rotate positional parameters.
                             shift 4
@@ -103,7 +103,7 @@ function svg_getActions {
                         --filter )
 
                             # Redefine regular expression.
-                            REGEX="$4"
+                            FLAG_FILTER="$4"
 
                             # Rotate positional parameters.
                             shift 4
@@ -133,7 +133,7 @@ function svg_getActions {
 
     # Re-define regular expression to match scalable vector graphic
     # files only.
-    REGEX=$(echo "${REGEX}.*\.(svgz|svg)")
+    FLAG_FILTER=$(echo "${FLAG_FILTER}.*\.(svgz|svg)")
 
     # Execute action name.
     if [[ $ACTIONNAM =~ "^${FUNCNAM}_[A-Za-z]+$" ]];then
diff --git a/Scripts/Bash/Functions/Verify/verify_doEnvironment.sh b/Scripts/Bash/Functions/Verify/verify_doEnvironment.sh
index dcbdf69..10eddd5 100755
--- a/Scripts/Bash/Functions/Verify/verify_doEnvironment.sh
+++ b/Scripts/Bash/Functions/Verify/verify_doEnvironment.sh
@@ -49,7 +49,7 @@ function verify_doEnvironment {
 
         # Let user to reduce output using regular expression as
         # reference.
-        if [[ ${VARS[$COUNT]} =~ $REGEX ]];then
+        if [[ ${VARS[$COUNT]} =~ $FLAG_FILTER ]];then
 
             # Output list of environment variables using indirect
             # expansion (what a beautiful feature!) to output variable
diff --git a/Scripts/Bash/Functions/Verify/verify_doPackageReport.sh b/Scripts/Bash/Functions/Verify/verify_doPackageReport.sh
index bb84ea6..95a755a 100755
--- a/Scripts/Bash/Functions/Verify/verify_doPackageReport.sh
+++ b/Scripts/Bash/Functions/Verify/verify_doPackageReport.sh
@@ -37,7 +37,7 @@ function verify_doPackageReport {
     for PACKAGE in ${PACKAGES_MISSING[@]};do
 
         # Is this package from third party?
-        if [[ $PACKAGE =~ $PACKAGES_THIRD_REGEX ]];then
+        if [[ $PACKAGE =~ $PACKAGES_THIRD_FLAG_FILTER ]];then
             WARNING=" (`gettext "requires third party repository!"`)"
         fi
 
diff --git a/Scripts/Bash/Functions/Verify/verify_doPackages.sh b/Scripts/Bash/Functions/Verify/verify_doPackages.sh
index 6854305..77ab1df 100644
--- a/Scripts/Bash/Functions/Verify/verify_doPackages.sh
+++ b/Scripts/Bash/Functions/Verify/verify_doPackages.sh
@@ -31,7 +31,7 @@
 function verify_doPackages {
 
     local PACKAGES=''
-    local PACKAGES_THIRD_REGEX=''
+    local PACKAGES_THIRD_FLAG_FILTER=''
     local -a PACKAGES_MISSING
     local PACKAGES_COUNT=0
 
@@ -43,7 +43,7 @@ function verify_doPackages {
     # Define, from required packages, packages being from third
     # parties (i.e., packages not included in CentOS [base]
     # repository.).
-    PACKAGES_THIRD_REGEX="(inkscape|blender)"
+    PACKAGES_THIRD_FLAG_FILTER="(inkscape|blender)"
 
     verify_doPackageCheck
     verify_doPackageReport
diff --git a/Scripts/Bash/Functions/Verify/verify_getActions.sh b/Scripts/Bash/Functions/Verify/verify_getActions.sh
index 3741eeb..0739c81 100755
--- a/Scripts/Bash/Functions/Verify/verify_getActions.sh
+++ b/Scripts/Bash/Functions/Verify/verify_getActions.sh
@@ -57,7 +57,7 @@ function verify_getActions {
                         --filter )
 
                             # Redefine regular expression.
-                            REGEX="$3"
+                            FLAG_FILTER="$3"
 
                             # Rotate positional parameters.
                             shift 3
@@ -87,7 +87,7 @@ function verify_getActions {
                         --filter )
 
                             # Redefine regular expression.
-                            REGEX="$3"
+                            FLAG_FILTER="$3"
 
                             # Rotate positional parameters.
                             shift 3
@@ -117,7 +117,7 @@ function verify_getActions {
                         --filter )
 
                             # Redefine regular expression.
-                            REGEX="$3"
+                            FLAG_FILTER="$3"
 
                             # Rotate positional parameters
                             shift 3
diff --git a/Scripts/Bash/Functions/cli.sh b/Scripts/Bash/Functions/cli.sh
index 552dab6..8e00eed 100644
--- a/Scripts/Bash/Functions/cli.sh
+++ b/Scripts/Bash/Functions/cli.sh
@@ -36,19 +36,25 @@ function cli {
     local FUNCCONFIG=''
     local ACTIONNAM=''
     local ACTIONVAL=''
-    local REGEX=''
     local ARGUMENTS=''
 
-    # Define default value to verbosity flag. The verbosity flag
+    # Initialize default value to verbosity flag. The verbosity flag
     # (--quiet) controls wether centos-art.sh script prints messages
     # or not.
     local FLAG_QUIET='false'
     
-    # Define default value to answer flag. The answer flag (--yes)
+    # Initialize default value to answer flag. The answer flag (--yes)
     # controls wether centos-art.sh script does or does not pass
     # confirmation request points.
     local FLAG_YES='false'
 
+    # Initialize default value to filter flag. The filter flag
+    # (--filter) is used mainly to reduce the number of files to
+    # process. The value of this variable is interpreted as
+    # egrep-posix regular expression.  As initial value, we use a
+    # regular expression that matches everything.
+    local FLAG_FILTER='.+'
+
     # Redefine positional parameters stored inside ARGUMENTS variable.
     cli_doParseArgumentsReDef "$@"
 
@@ -98,11 +104,6 @@ function cli {
     # Check text editor execution rights. 
     cli_checkFiles $EDITOR 'x'
 
-    # Initialize regular expression (REGEX) used to reduce file
-    # processing. If no regular expression is defined, set regular
-    # expression to match everything.
-    REGEX='.+'
-
     # Go for function initialization. Keep the cli_getFunctions
     # function calling after all variables and arguments definitions.
     cli_getFunctions
diff --git a/Scripts/Bash/Functions/cli_getFilesList.sh b/Scripts/Bash/Functions/cli_getFilesList.sh
index 005b87a..edb65d4 100755
--- a/Scripts/Bash/Functions/cli_getFilesList.sh
+++ b/Scripts/Bash/Functions/cli_getFilesList.sh
@@ -37,8 +37,8 @@ function cli_getFilesList {
         LOCATION="$ACTIONVAL"
     fi
 
-    # Define regular expression (REGEX) local variable, using regular
-    # expression (REGEX) global variable, to reduce the amount of
+    # Define regular expression (FLAG_FILTER) local variable, using regular
+    # expression (FLAG_FILTER) global variable, to reduce the amount of
     # characters we type in order to match find's output. When using
     # regular expression with find, in order to reduce the amount
     # files found, the regular expression is evaluated against the
@@ -49,11 +49,11 @@ function cli_getFilesList {
     # typing, we prepare the regular expression here to match the
     # whole path using the regular expression provided by the user as
     # pattern.
-    local REGEX="^${LOCATION}/${REGEX}$"
+    local FLAG_FILTER="^${LOCATION}/${FLAG_FILTER}$"
 
     # Define list of files to process.
     if [[ -d $LOCATION ]];then
-        FILES=$(find $LOCATION -regextype posix-egrep -type f -regex "${REGEX}" | sort)
+        FILES=$(find $LOCATION -regextype posix-egrep -type f -regex "${FLAG_FILTER}" | sort)
     elif [[ -f $LOCATION ]];then
         FILES=$LOCATION
     fi