diff --git a/images/linux/scripts/installers/aws-sam-cli.sh b/images/linux/scripts/installers/aws-sam-cli.sh
index 004a7f3a7..a8512e61a 100644
--- a/images/linux/scripts/installers/aws-sam-cli.sh
+++ b/images/linux/scripts/installers/aws-sam-cli.sh
@@ -15,13 +15,15 @@ wget $TarballUrl -O $TarballPath
 tar -xzvf $TarballPath -C /tmp
 cd /tmp/awslabs-aws-sam-cli*
 
-# Use python 3.7 from toolcache to install aws sam, setuptools package required for the installation
-Python3Dir=$(echo /opt/hostedtoolcache/Python/3.7*/x64)
+mkdir /opt/python-aws-sam-cli
+cp -r /opt/hostedtoolcache/Python/3.7* /opt/python-aws-sam-cli
+
+# Use copy of python 3.7 from toolcache to install aws sam, setuptools package required for the installation
+Python3Dir=$(echo /opt/python-aws-sam-cli/3.7*/x64)
 Python3BinDir="${Python3Dir}/bin"
-export PATH="$Python3Dir:$Python3BinDir:$PATH"
-python3 -m pip install setuptools
-python3 setup.py install
-sudo ln -sf ${Python3BinDir}/sam /usr/local/bin/sam
+$Python3BinDir/python3 -m pip install setuptools
+$Python3BinDir/python3 setup.py install
+ln -sf ${Python3BinDir}/sam /usr/local/bin/sam
 
 # Run tests to determine that the software installed as expected
 echo "Testing to make sure that script performed as expected, and basic scenarios work"
diff --git a/images/linux/ubuntu1604.json b/images/linux/ubuntu1604.json
index 2475f03d7..ae036bdf3 100644
--- a/images/linux/ubuntu1604.json
+++ b/images/linux/ubuntu1604.json
@@ -259,7 +259,7 @@
                 "METADATA_FILE={{user `metadata_file`}}",
                 "HELPER_SCRIPTS={{user `helper_script_folder`}}"
             ],
-            "execute_command": "/bin/sh -c '{{ .Vars }} {{ .Path }}'"
+            "execute_command": "sudo sh -c '{{ .Vars }} {{ .Path }}'"
         },
         {
             "type": "shell",
diff --git a/images/linux/ubuntu1804.json b/images/linux/ubuntu1804.json
index 7314664dd..9302e5cbe 100644
--- a/images/linux/ubuntu1804.json
+++ b/images/linux/ubuntu1804.json
@@ -263,7 +263,7 @@
                 "METADATA_FILE={{user `metadata_file`}}",
                 "HELPER_SCRIPTS={{user `helper_script_folder`}}"
             ],
-            "execute_command": "/bin/sh -c '{{ .Vars }} {{ .Path }}'"
+            "execute_command": "sudo sh -c '{{ .Vars }} {{ .Path }}'"
         },
         {
             "type": "shell",
diff --git a/images/linux/ubuntu2004.json b/images/linux/ubuntu2004.json
index 1ec55d1ef..73ef44df4 100644
--- a/images/linux/ubuntu2004.json
+++ b/images/linux/ubuntu2004.json
@@ -264,7 +264,7 @@
                 "METADATA_FILE={{user `metadata_file`}}",
                 "HELPER_SCRIPTS={{user `helper_script_folder`}}"
             ],
-            "execute_command": "/bin/sh -c '{{ .Vars }} {{ .Path }}'"
+            "execute_command": "sudo sh -c '{{ .Vars }} {{ .Path }}'"
         },
         {
             "type": "shell",