Update README and main.ml to simplify project initialization commands and clarify program types.

Author: congwang-mk

README.md

@@ -242,19 +242,19 @@ Create a new KernelScript project with template code:
 
 ```bash
 # Create XDP project
-kernelscript init --btf-vmlinux-path /sys/kernel/btf/vmlinux xdp my_packet_filter
+kernelscript init xdp my_packet_filter
 
 # Create TC project  
-kernelscript init --btf-vmlinux-path /sys/kernel/btf/vmlinux tc my_traffic_shaper
+kernelscript init tc my_traffic_shaper
 
 # Create kprobe project
-kernelscript init --btf-vmlinux-path /sys/kernel/btf/vmlinux kprobe my_tracer
+kernelscript init kprobe/sys_read my_tracer
 
 # Create project with custom BTF path
 kernelscript init --btf-vmlinux-path /custom/path/vmlinux xdp my_project
 
 # Create struct_ops project
-kernelscript init --btf-vmlinux-path /sys/kernel/btf/vmlinux tcp_congestion_ops my_congestion_control
+kernelscript init tcp_congestion_ops my_congestion_control
 ```
 
 After initialization, you get:
@@ -269,16 +269,10 @@ my_project/
 - `xdp` - XDP programs for packet processing
 - `tc` - Traffic control programs  
 - `kprobe` - Kernel function tracing
-- `uprobe` - User function tracing
 - `tracepoint` - Kernel tracepoint programs
-- `lsm` - Linux Security Module programs
-- `cgroup_skb` - Cgroup socket buffer programs
 
 **Available struct_ops:**
 - `tcp_congestion_ops` - TCP congestion control
-- `bpf_iter_ops` - BPF iterator operations
-- `bpf_struct_ops_test` - Test struct operations
-- Custom struct_ops names
 
 
 ### Compile KernelScript Programs
@@ -348,7 +342,7 @@ sudo ./my_project          # Run the program
 
 3. **Create your first project:**
    ```bash
-   kernelscript -- init xdp hello_world
+   kernelscript init xdp hello_world
    cd hello_world/
    ```
 

src/main.ml

@@ -34,9 +34,10 @@ let rec parse_args () =
       printf "Subcommands:\n";
       printf "  init <prog_type_or_struct_ops> <project_name> [--btf-vmlinux-path <path>]\n";
       printf "    Initialize a new KernelScript project\n";
-      printf "    prog_type: xdp | tc | kprobe/target_function | uprobe | tracepoint | lsm | cgroup_skb\n";
+      printf "    prog_type: xdp | tc | kprobe/target_function | tracepoint/category/event\n";
       printf "    Examples: kprobe/sys_read, kprobe/vfs_write, kprobe/tcp_sendmsg\n";
-      printf "    struct_ops: tcp_congestion_ops | bpf_iter_ops | bpf_struct_ops_test | custom_name\n";
+      printf "    tracepoint: tracepoint/syscalls/sys_enter_read, tracepoint/sched/sched_switch\n";
+      printf "    struct_ops: tcp_congestion_ops\n";
       printf "    project_name: Name of the project directory to create\n";
       printf "    --btf-vmlinux-path: Path to BTF vmlinux file (default: /sys/kernel/btf/vmlinux)\n\n";
       printf "  compile <input_file> [options]\n";
@@ -300,10 +301,7 @@ cd %s && make run
         | "xdp" -> "XDP programs provide high-performance packet processing at the driver level."
         | "tc" -> "TC programs enable traffic control and packet filtering in the Linux networking stack."
         | "kprobe" -> "Kprobe programs allow dynamic tracing of kernel functions."
-        | "uprobe" -> "Uprobe programs enable tracing of userspace functions."
         | "tracepoint" -> "Tracepoint programs provide static tracing points in the kernel."
-        | "lsm" -> "LSM programs implement security policies and access control."
-        | "cgroup_skb" -> "Cgroup SKB programs filter network packets based on cgroup membership."
         | _ -> "eBPF program for kernel-level processing."
       )
     ) in