diff --git a/tools/deployment-cli-tools/ch_cli_tools/migration.py b/tools/deployment-cli-tools/ch_cli_tools/migration.py
index 3beae072..862648c0 100644
--- a/tools/deployment-cli-tools/ch_cli_tools/migration.py
+++ b/tools/deployment-cli-tools/ch_cli_tools/migration.py
@@ -13,48 +13,56 @@
 
 def perform_migration(base_root, accept_all=False):
     all_files_detected = []
-    f = open(os.path.join(HERE, "config", "migration.json"), "r")
-    migration_json = json.load(f)
+    for file in os.listdir(os.path.join(HERE, "migrations")):
+        f = open(os.path.join(HERE, "migrations", file), "r")
+        migration_json = json.load(f)
 
-    app_base_path = os.path.join(base_root, APPS_PATH)
+        sub_paths = []
+        if isinstance(base_root, list):
+            app_base_path = [
+                os.path.join(base_root_path, APPS_PATH)
+                for base_root_path in base_root
+            ]
+            for app_path in app_base_path:
+                sub_paths.extend(get_sub_paths(app_path))
+        else:
+            app_base_path = os.path.join(base_root, APPS_PATH)
+            sub_paths = get_sub_paths(app_base_path)
 
-    # Iterate over all the applications to check if they need to be migrated
-    for app_path in get_sub_paths(app_base_path):
-        # Iterate the folders and files to check if they need to be migrated
-        for sub_path in TO_CHECK:
-            to_check = os.path.join(app_path, sub_path)
-            if os.path.isdir(to_check):
-                for migration_obj in migration_json["deprecated"]:
-                    files = search_word_in_folder(to_check, migration_obj["keyword"])
-                    for file in files:
-                        file_path = os.path.join(to_check, file)
-                        print("#########################################")
-                        print(f"Running migration on {file_path}")
-                        print("#########################################")
-                        all_files_detected.append(file_path)
-                        for word_to_replace in migration_obj["to_be_replaced"]:
-                            read_file_and_replace(
-                                file_path,
-                                word_to_replace["old"],
-                                word_to_replace["new"],
-                                accept_all,
-                            )
-            elif os.path.isfile(to_check):
-                for migration_obj in migration_json["deprecated"]:
-                    if len(search_word_in_file(to_check, migration_obj["keyword"])) > 0:
-                        print("#########################################")
-                        print(f"Running migration on {to_check}")
-                        print("#########################################")
-                        all_files_detected.append(to_check)
-                        for word_to_replace in migration_obj["to_be_replaced"]:
-                            read_file_and_replace(
-                                to_check,
-                                word_to_replace["old"],
-                                word_to_replace["new"],
-                                accept_all,
-                            )
-            else:
-                print(f'Path {to_check} does not exist')
+        for app_path in sub_paths:
+            # Iterate the folders and files to check if they need to be migrated
+            for sub_path in TO_CHECK:
+                to_check = os.path.join(app_path, sub_path)
+                if os.path.isdir(to_check):
+                    for migration_obj in migration_json["deprecated"]:
+                        files = search_word_in_folder(to_check, migration_obj["keyword"])
+                        for file in files:
+                            file_path = os.path.join(to_check, file)
+                            print("#########################################")
+                            print(f"Running migration on {file_path}")
+                            print("#########################################")
+                            all_files_detected.append(file_path)
+                            for word_to_replace in migration_obj["to_be_replaced"]:
+                                read_file_and_replace(
+                                    file_path,
+                                    word_to_replace["old"],
+                                    word_to_replace["new"],
+                                    accept_all,
+                                )
+                elif os.path.isfile(to_check):
+                    for migration_obj in migration_json["deprecated"]:
+                        if len(search_word_in_file(to_check, migration_obj["keyword"])) > 0:
+                            print("#########################################")
+                            print(f"Running migration on {to_check}")
+                            print("#########################################")
+                            all_files_detected.append(to_check)
+                            for word_to_replace in migration_obj["to_be_replaced"]:
+                                read_file_and_replace(
+                                    to_check,
+                                    word_to_replace["old"],
+                                    word_to_replace["new"],
+                                    accept_all,
+                                )
     print("=========================================")
     print("=== Cloud Harness migration completed ===")
     print("=========================================")
diff --git a/tools/deployment-cli-tools/ch_cli_tools/config/migration.json b/tools/deployment-cli-tools/ch_cli_tools/migrations/1_migration.json
similarity index 100%
rename from tools/deployment-cli-tools/ch_cli_tools/config/migration.json
rename to tools/deployment-cli-tools/ch_cli_tools/migrations/1_migration.json
diff --git a/tools/deployment-cli-tools/ch_cli_tools/utils.py b/tools/deployment-cli-tools/ch_cli_tools/utils.py
index 375b35ec..0bb6b588 100644
--- a/tools/deployment-cli-tools/ch_cli_tools/utils.py
+++ b/tools/deployment-cli-tools/ch_cli_tools/utils.py
@@ -398,32 +398,20 @@ def filter_empty_strings(value):
 
 
 def search_word_in_file(file, word):
-    p = subprocess.Popen('grep -l %s %s'% (word, file), shell=True,
-        stdout=subprocess.PIPE)
-    output, _ = p.communicate()
-    output = output.decode("utf-8")
+    if os.path.isdir(file):
+        return []
     matches = []
-    if p.returncode == 1: # no matches found
-        pass
-    elif p.returncode == 0: # matches found
-        matches = output.split('\n')
-    else:
-        raise Exception(f'Migration Error: {file} grep failed with return code {p.returncode} and output {output}')
+    with open(file) as f:
+            if word in f.read():
+                matches.append(file)
     return list(filter(filter_empty_strings, matches))
 
 
 def search_word_in_folder(folder, word):
-    p = subprocess.Popen('grep -rl %s %s'% (word, '*'), shell=True,
-        stdout=subprocess.PIPE, cwd=folder)
-    output, _ = p.communicate()
-    output = output.decode("utf-8")
     matches = []
-    if p.returncode == 1: # no matches found
-        pass
-    elif p.returncode == 0: # matches found
-        matches = output.split('\n')
-    else:
-        raise Exception(f'Migration Error: {folder} grep failed with return code {p.returncode} and output {output}')
+    files = glob.glob(folder + '/**/*', recursive = True)
+    for file in files:
+        matches.extend(search_word_in_file(file, word))
     return list(filter(filter_empty_strings, matches))
 
 
diff --git a/tools/deployment-cli-tools/tests/resources/applications/migration_app/Dockerfile b/tools/deployment-cli-tools/tests/resources/applications/migration_app/Dockerfile
index 12e4f487..721ff5e5 100644
--- a/tools/deployment-cli-tools/tests/resources/applications/migration_app/Dockerfile
+++ b/tools/deployment-cli-tools/tests/resources/applications/migration_app/Dockerfile
@@ -1,4 +1,4 @@
 ARG CLOUDHARNESS_BASE_DEBIAN
 FROM $CLOUDHARNESS_BASE_DEBIAN
 
-RUN apk add --no-cache bash
+RUN apt install --no-cache bash