message_to_user(){ echo ' This package provides a file: /etc/profile.d/microchip-mplabxc8-bin.sh It will add the toolchain binaries to the PATH variable for every user. It also defines XC8_TOOLCHAIN_ROOT pointing to the toolchain install dir. Log out and log back in to update your environment varibles. Before using MPLAB_XC8 you have to agree with the LICENSE at: /usr/share/licenses/microchip-mplabxc8-bin/LICENSE For using MPLAB_XC8 with MPLAB_X (microchip-mplabx-bin), in MPLAB_X go to: Tools->Options->Embedded->Add and enter: $XC8_TOOLCHAIN_ROOT/bin ' } post_install() { message_to_user } post_upgrade() { message_to_user }