diff --git a/tests/lib/install_pkg.py b/tests/lib/install_pkg.py
index 2d89ccfbeba..5729ac5b413 100644
--- a/tests/lib/install_pkg.py
+++ b/tests/lib/install_pkg.py
@@ -4,13 +4,32 @@
 
 """ Common utilities for OpenVINO install package.
 """
-import sys
+import errno
+import os
 from pathlib import Path
-from proc_utils import get_env_from  # pylint: disable=import-error
+import subprocess
+import sys
 
 
 def get_openvino_environment(install_prefix: Path):
     """ Get OpenVINO environment variables
     """
-    script = "setupvars.bat" if sys.platform == "win32" else "setupvars.sh"
-    return get_env_from(install_prefix / "bin" / script)
+    if sys.platform == "win32":
+        script = install_prefix / "bin" / "setupvars.bat"
+        cmd = f"{script} && set"
+    else:
+        script = install_prefix / "bin" / "setupvars.sh"
+        # setupvars.sh is not compatible with /bin/sh. Using bash.
+        cmd = f'bash -c ". {script} && env"'
+
+    if not os.path.exists(str(script)):
+        raise FileNotFoundError(errno.ENOENT, os.strerror(errno.ENOENT), str(script))
+
+    env = {}
+    dump = subprocess.check_output(cmd, shell=True, universal_newlines=True).strip()
+    for line in dump.split("\n"):
+        # split by first '='
+        pair = [str(val).strip() for val in line.split("=", 1)]
+        if len(pair) > 1 and pair[0]:  # ignore invalid entries
+            env[pair[0]] = pair[1]
+    return env
diff --git a/tests/lib/path_utils.py b/tests/lib/path_utils.py
index f65182761e2..5d9718996a0 100644
--- a/tests/lib/path_utils.py
+++ b/tests/lib/path_utils.py
@@ -2,7 +2,7 @@
 # Copyright (C) 2021 Intel Corporation
 # SPDX-License-Identifier: Apache-2.0
 
-""" Common utilities for working with processes.
+""" Common utilities for working with paths
 """
 
 import os
diff --git a/tests/lib/proc_utils.py b/tests/lib/proc_utils.py
index 659c22814aa..8057765bfc0 100644
--- a/tests/lib/proc_utils.py
+++ b/tests/lib/proc_utils.py
@@ -5,30 +5,8 @@
 """ Common utilities for working with processes.
 """
 
-import errno
-import os
 import logging
 import subprocess
-import sys
-
-
-def get_env_from(script):
-    """ Get environment set by a shell script
-    """
-    if not os.path.exists(str(script)):
-        raise FileNotFoundError(errno.ENOENT, os.strerror(errno.ENOENT), str(script))
-    env = {}
-    if sys.platform == "win32":
-        cmd = f'"{script}" && set'
-    else:
-        cmd = f'. "{script}" && env'
-    dump = subprocess.check_output(cmd, shell=True, universal_newlines=True).strip()
-    for line in dump.split("\n"):
-        # split by first '='
-        pair = [str(val).strip() for val in line.split("=", 1)]
-        if len(pair) > 1 and pair[0]:  # ignore invalid entries
-            env[pair[0]] = pair[1]
-    return env
 
 
 def cmd_exec(args, env=None, log=None, verbose=True):