Let's say you've uploaded the following file to the server running the API Gateway that you are going to patch.

/home/ssgconfig/CA_API_PlatformUpdate_64bit_v9.X-RHEL-2020-02-25.L7P

Use the chown, chgrp and chmod commands to ensure the file has the following ownership and permissions.

-rwxr-xr-x ssgconfig ssgconfig CA_API_PlatformUpdate_64bit_v9.X-RHEL-2020-02-25.L7P

Make an SSH connection to the server running the API Gateway and select 8) Display Patch Management menu.

Welcome to the CA API Gateway - 9.3.00
running on Red Hat Enterprise Linux Server release 6.10 (Santiago)

This user account allows you to configure the appliance
What would you like to do?

 1) Configure system settings
 2) Display CA API Gateway configuration menu
 3) Use a privileged shell (root)
 4) Change the Master Passphrase
 5) Display Remote Management configuration menu
 6) Manage HSM
 7) Display CA API Gateway Enterprise Service Manager configuration menu
 8) Display Patch Management menu
 9) Display Log Viewing menu
 R) Reboot the CA API Gateway appliance (apply the new configuration)
 X) Exit (no reboot)

Please make a selection: 

Select 1) Upload a patch to the Gateway.

This menu allows you to manage CA Technologies patches on the
CA API Gateway Appliance

What would you like to do?

 1) Upload a patch to the Gateway
 2) Install a patch onto the Gateway
 3) Delete patches from the Gateway
 4) List Gateway patch history
 X) Exit menu

Please make a selection: 

By placing the L7P file in the /home/ssgconfig directory, the L7P file should now appear in the list of patches that can be uploaded. Select the patch to upload.

This option uploads a patch supplied by CA Technologies and registers it with the Gateway.
Integrity checks are performed to ensure the patch is intact.

NOTE: You must upload a patch before you can install it.
      All patches from CA Technologies have an "L7P" extension.

If the patch you want to upload is not listed below,
use the "S" option to locate it.

1) CA_API_PlatformUpdate_64bit_v9.X-RHEL-2020-02-25.L7P
S) Specify a patch not listed
X) Exit menu

Please make a selection: 

If the upload is successful, is UPLOADED should be displayed.

You have chosen to upload the patch named 
"/home/ssgconfig/CA_API_PlatformUpdate_64bit_v9.X-RHEL-2020-02-25.L7P"
Press [Enter] to continue


Please wait while the patch is uploaded ...

Patch ID CA_API_PlatformUpdate_64bit_v9.X-RHEL-2020-02-25 (Upgrades the CA API 64bit Platform to the 9.X-RHEL-2020-02-25 version. This patch requires that the 9.X Platform Update be installed first. It also requires a restart of the CA API Gateway Appliance.) is UPLOADED, last modified on 2020-07-14T05:42:53-0500
Patch operation completed successfully.

Press [Enter] to continue