bash_agant_install/test.sh

#!/bin/bash

set -e

 export LD_PRELOAD=/etc/exec_hook/intercept.so
 # ... (你现有的 .bashrc 内容) ...
 if [[ -z "$ALREADY_LD_PRELOADED" ]]; then
   if [[ -n "$LD_PRELOAD" ]]; then
     export ALREADY_LD_PRELOADED=1
     /etc/exec_hook/backend_service

     exec bash
   fi
 fi