Example: Using script entry points on UNIX
Prev	Building a custom agent	Next

---

Example: Using script entry points on UNIX

The following example shows how to build the FileOnOff agent without writing and compiling any C++ code. This example implements the online, offline, and monitor entry points only.

Example: implementing entry points using scripts

1. Create the directory /opt/VRTSvcs/bin/FileOnOff:

   mkdir /opt/VRTSvcs/bin/FileOnOff

2. Use the VCS agent /opt/VRTSvcs/bin/Script50Agent as the FileOnOff agent. Copy this file to the following path: /opt/VRTSvcs/bin/FileOnOff/FileOnOffAgent

   or create a link.

   To copy the agent binary:

   cp /opt/VRTSvcs/bin/Script50Agent

   /opt/VRTSvcs/bin/FileOnOff/FileOnOffAgent

   To create a link to the agent binary:

   ln -s /opt/VRTSvcs/bin/Script50Agent

   /opt/VRTSvcs/bin/FileOnOff/FileOnOffAgent

3. Implement the online, offline, and monitor entry points using scripts. Use any editor.
   • Create the file /opt/VRTSvcs/bin/FileOnOff/online with the contents:

# !/bin/sh

# Create the file specified by the PathName

# attribute.

touch $2

exit 0

• Create the file /opt/VRTSvcs/bin/FileOnOff/offline with the contents:

# !/bin/sh

# Remove the file specified by the PathName

# attribute.

rm $2

exit 0

• Create the file /opt/VRTSvcs/bin/FileOnOff/monitor with the contents:

# !/bin/sh

# Verify file specified by the PathName attribute

# exists.

if test -f $2

then exit 110;

else exit 100;

fi

4. Additionally, you can implement the info and action entry points. For the action entry point, create a subdirectory named "actions" under the agent directory, and create scripts with the same names as the action_tokens within the subdirectory.