diff --git a/release/bash/gupload b/release/bash/gupload
index b16e233..e10285d 100755
--- a/release/bash/gupload
+++ b/release/bash/gupload
@@ -583,25 +583,25 @@ fi
 EOF
 _parser_setup_flag "-in --include" 1 required "pattern"
 _parser_setup_flag_help \
-"Only include the files with the given pattern to upload - Applicable for folder uploads.
+"Only upload the files which contains the given pattern - Applicable for folder uploads.
 
-e.g: ${0##*/} local_folder --include '*1*', will only include with files with pattern '1' in the name."
+e.g: ${0##*/} local_folder --include 1, will only include with files with pattern 1 in the name. Regex can be used which works with grep -E command."
 _parser_setup_flag_preprocess 4<<'EOF'
 unset INCLUDE_FILES
 EOF
 _parser_setup_flag_process 4<<'EOF'
-INCLUDE_FILES="${INCLUDE_FILES} -name '${2}' " && _parser_shift
+export INCLUDE_FILES="${INCLUDE_FILES:+${INCLUDE_FILES}|}${2}" && _parser_shift
 EOF
 _parser_setup_flag "-ex --exclude" 1 required "pattern"
 _parser_setup_flag_help \
-"Exclude the files with the given pattern from uploading. - Applicable for folder uploads.
+"Only download the files which does not contain the given pattern - Applicable for folder downloads.
 
-e.g: ${0##*/} local_folder --exclude "*1*", will exclude all the files pattern '1' in the name."
+e.g: ${0##*/} local_folder --exclude 1, will only include with files with pattern 1 not present in the name. Regex can be used which works with grep -E command."
 _parser_setup_flag_preprocess 4<<'EOF'
 unset EXCLUDE_FILES
 EOF
 _parser_setup_flag_process 4<<'EOF'
-EXCLUDE_FILES="${EXCLUDE_FILES} -name ! '${2}' " && _parser_shift
+export EXCLUDE_FILES="${EXCLUDE_FILES:+${EXCLUDE_FILES}|}${2}" && _parser_shift
 EOF
 _parser_setup_flag "--hide" 0
 _parser_setup_flag_help \
@@ -1798,11 +1798,15 @@ NEXTROOTDIRID="$WORKSPACE_FOLDER_ID"
 "$EXTRA_LOG" "justify" "Processing folder.." "-"
 [ -z "$SKIP_SUBDIRS" ]&&"$EXTRA_LOG" "justify" "Indexing subfolders.." "-"
 DIRNAMES="$(find "$input" -type d -not -empty)"
+[ -n "$INCLUDE_FILES" ]&&_tmp_dirnames="$(printf "%s\n" "$DIRNAMES"|grep -E "$INCLUDE_FILES")"&&DIRNAMES="$_tmp_dirnames"
+[ -n "$EXCLUDE_FILES" ]&&_tmp_dirnames="$(printf "%s\n" "$DIRNAMES"|grep -Ev "$INCLUDE_FILES")"&&DIRNAMES="$_tmp_dirnames"
 NO_OF_FOLDERS="$(($(printf "%s\n" "$DIRNAMES"|wc -l)))"&&NO_OF_SUB_FOLDERS="$((NO_OF_FOLDERS-1))"
 [ -z "$SKIP_SUBDIRS" ]&&_clear_line 1
 [ "$NO_OF_SUB_FOLDERS" = 0 ]&&SKIP_SUBDIRS="true"
 "$EXTRA_LOG" "justify" "Indexing files.." "-"
-FILENAMES="$(_tmp='find "'$input'" -type f -name "*" '$INCLUDE_FILES' '$EXCLUDE_FILES''&&eval "$_tmp")"
+FILENAMES="$(find "$input" -type f)"
+[ -n "$INCLUDE_FILES" ]&&_tmp_filenames="$(printf "%s\n" "$FILENAMES"|grep -E "$EXCLUDE_FILES")"&&FILENAMES="$_tmp_filenames"
+[ -n "$EXCLUDE_FILES" ]&&_tmp_filenames="$(printf "%s\n" "$FILENAMES"|grep -Ev "$EXCLUDE_FILES")"&&FILENAMES="$_tmp_filenames"
 _clear_line 1
 if [ -n "$SKIP_SUBDIRS" ];then
 if [ -n "$FILENAMES" ];then
diff --git a/release/sh/gupload b/release/sh/gupload
index 9e58aba..0b1b739 100755
--- a/release/sh/gupload
+++ b/release/sh/gupload
@@ -556,25 +556,25 @@ fi
 EOF
 _parser_setup_flag "-in --include" 1 required "pattern"
 _parser_setup_flag_help \
-"Only include the files with the given pattern to upload - Applicable for folder uploads.
+"Only upload the files which contains the given pattern - Applicable for folder uploads.
 
-e.g: ${0##*/} local_folder --include '*1*', will only include with files with pattern '1' in the name."
+e.g: ${0##*/} local_folder --include 1, will only include with files with pattern 1 in the name. Regex can be used which works with grep -E command."
 _parser_setup_flag_preprocess 4<<'EOF'
 unset INCLUDE_FILES
 EOF
 _parser_setup_flag_process 4<<'EOF'
-INCLUDE_FILES="${INCLUDE_FILES} -name '${2}' " && _parser_shift
+export INCLUDE_FILES="${INCLUDE_FILES:+${INCLUDE_FILES}|}${2}" && _parser_shift
 EOF
 _parser_setup_flag "-ex --exclude" 1 required "pattern"
 _parser_setup_flag_help \
-"Exclude the files with the given pattern from uploading. - Applicable for folder uploads.
+"Only download the files which does not contain the given pattern - Applicable for folder downloads.
 
-e.g: ${0##*/} local_folder --exclude "*1*", will exclude all the files pattern '1' in the name."
+e.g: ${0##*/} local_folder --exclude 1, will only include with files with pattern 1 not present in the name. Regex can be used which works with grep -E command."
 _parser_setup_flag_preprocess 4<<'EOF'
 unset EXCLUDE_FILES
 EOF
 _parser_setup_flag_process 4<<'EOF'
-EXCLUDE_FILES="${EXCLUDE_FILES} -name ! '${2}' " && _parser_shift
+export EXCLUDE_FILES="${EXCLUDE_FILES:+${EXCLUDE_FILES}|}${2}" && _parser_shift
 EOF
 _parser_setup_flag "--hide" 0
 _parser_setup_flag_help \
@@ -1767,11 +1767,15 @@ NEXTROOTDIRID="$WORKSPACE_FOLDER_ID"
 "$EXTRA_LOG" "justify" "Processing folder.." "-"
 [ -z "$SKIP_SUBDIRS" ]&&"$EXTRA_LOG" "justify" "Indexing subfolders.." "-"
 DIRNAMES="$(find "$input" -type d -not -empty)"
+[ -n "$INCLUDE_FILES" ]&&_tmp_dirnames="$(printf "%s\n" "$DIRNAMES"|grep -E "$INCLUDE_FILES")"&&DIRNAMES="$_tmp_dirnames"
+[ -n "$EXCLUDE_FILES" ]&&_tmp_dirnames="$(printf "%s\n" "$DIRNAMES"|grep -Ev "$INCLUDE_FILES")"&&DIRNAMES="$_tmp_dirnames"
 NO_OF_FOLDERS="$(($(printf "%s\n" "$DIRNAMES"|wc -l)))"&&NO_OF_SUB_FOLDERS="$((NO_OF_FOLDERS-1))"
 [ -z "$SKIP_SUBDIRS" ]&&_clear_line 1
 [ "$NO_OF_SUB_FOLDERS" = 0 ]&&SKIP_SUBDIRS="true"
 "$EXTRA_LOG" "justify" "Indexing files.." "-"
-FILENAMES="$(_tmp='find "'$input'" -type f -name "*" '$INCLUDE_FILES' '$EXCLUDE_FILES''&&eval "$_tmp")"
+FILENAMES="$(find "$input" -type f)"
+[ -n "$INCLUDE_FILES" ]&&_tmp_filenames="$(printf "%s\n" "$FILENAMES"|grep -E "$EXCLUDE_FILES")"&&FILENAMES="$_tmp_filenames"
+[ -n "$EXCLUDE_FILES" ]&&_tmp_filenames="$(printf "%s\n" "$FILENAMES"|grep -Ev "$EXCLUDE_FILES")"&&FILENAMES="$_tmp_filenames"
 _clear_line 1
 if [ -n "$SKIP_SUBDIRS" ];then
 if [ -n "$FILENAMES" ];then
diff --git a/src/common/upload-common.sh b/src/common/upload-common.sh
index 31d7d9a..69deca4 100644
--- a/src/common/upload-common.sh
+++ b/src/common/upload-common.sh
@@ -284,12 +284,26 @@ _process_arguments() {
             [ -z "${SKIP_SUBDIRS}" ] && "${EXTRA_LOG}" "justify" "Indexing subfolders.." "-"
             # Do not create empty folders during a recursive upload. Use of find in this section is important.
             DIRNAMES="$(find "${input}" -type d -not -empty)"
+
+            # include or exlude the files if -in or -ex flag was used, use grep
+            [ -n "${INCLUDE_FILES}" ] && _tmp_dirnames="$(printf "%s\n" "${DIRNAMES}" | grep -E "${INCLUDE_FILES}")" &&
+                DIRNAMES="${_tmp_dirnames}"
+            [ -n "${EXCLUDE_FILES}" ] && _tmp_dirnames="$(printf "%s\n" "${DIRNAMES}" | grep -Ev "${INCLUDE_FILES}")" &&
+                DIRNAMES="${_tmp_dirnames}"
+
             NO_OF_FOLDERS="$(($(printf "%s\n" "${DIRNAMES}" | wc -l)))" && NO_OF_SUB_FOLDERS="$((NO_OF_FOLDERS - 1))"
             [ -z "${SKIP_SUBDIRS}" ] && _clear_line 1
             [ "${NO_OF_SUB_FOLDERS}" = 0 ] && SKIP_SUBDIRS="true"
 
             "${EXTRA_LOG}" "justify" "Indexing files.." "-"
-            FILENAMES="$(_tmp='find "'${input}'" -type f -name "*" '${INCLUDE_FILES}' '${EXCLUDE_FILES}'' && eval "${_tmp}")"
+            FILENAMES="$(find "${input}" -type f)"
+
+            # include or exlude the files if -in or -ex flag was used, use grep
+            [ -n "${INCLUDE_FILES}" ] && _tmp_filenames="$(printf "%s\n" "${FILENAMES}" | grep -E "${EXCLUDE_FILES}")" &&
+                FILENAMES="${_tmp_filenames}"
+            [ -n "${EXCLUDE_FILES}" ] && _tmp_filenames="$(printf "%s\n" "${FILENAMES}" | grep -Ev "${EXCLUDE_FILES}")" &&
+                FILENAMES="${_tmp_filenames}"
+
             _clear_line 1
 
             # Skip the sub folders and find recursively all the files and upload them.
diff --git a/src/common/upload-flags.sh b/src/common/upload-flags.sh
index 015176f..84c89c4 100644
--- a/src/common/upload-flags.sh
+++ b/src/common/upload-flags.sh
@@ -404,32 +404,32 @@ EOF
 
     _parser_setup_flag "-in --include" 1 required "pattern"
     _parser_setup_flag_help \
-        "Only include the files with the given pattern to upload - Applicable for folder uploads.
+        "Only upload the files which contains the given pattern - Applicable for folder uploads.
 
-e.g: ${0##*/} local_folder --include '*1*', will only include with files with pattern '1' in the name."
+e.g: ${0##*/} local_folder --include 1, will only include with files with pattern 1 in the name. Regex can be used which works with grep -E command."
 
     _parser_setup_flag_preprocess 4<< 'EOF'
 unset INCLUDE_FILES
 EOF
 
     _parser_setup_flag_process 4<< 'EOF'
-INCLUDE_FILES="${INCLUDE_FILES} -name '${2}' " && _parser_shift
+export INCLUDE_FILES="${INCLUDE_FILES:+${INCLUDE_FILES}|}${2}" && _parser_shift
 EOF
 
     ###################################################
 
     _parser_setup_flag "-ex --exclude" 1 required "pattern"
     _parser_setup_flag_help \
-        "Exclude the files with the given pattern from uploading. - Applicable for folder uploads.
+        "Only download the files which does not contain the given pattern - Applicable for folder downloads.
 
-e.g: ${0##*/} local_folder --exclude "*1*", will exclude all the files pattern '1' in the name."
+e.g: ${0##*/} local_folder --exclude 1, will only include with files with pattern 1 not present in the name. Regex can be used which works with grep -E command."
 
     _parser_setup_flag_preprocess 4<< 'EOF'
 unset EXCLUDE_FILES
 EOF
 
     _parser_setup_flag_process 4<< 'EOF'
-EXCLUDE_FILES="${EXCLUDE_FILES} -name ! '${2}' " && _parser_shift
+export EXCLUDE_FILES="${EXCLUDE_FILES:+${EXCLUDE_FILES}|}${2}" && _parser_shift
 EOF
 
     ###################################################