docs(commands): add documentation about build command

README.md

@@ -40,7 +40,7 @@ getrlimit
 
 These are the syscalls that have been executed by the traced function!
 
-**N.B.** For a complete list of available command, take a look [here](docs/commands.md).
+**N.B.** For a complete list of available commands, take a look [here](docs/commands.md).
 
 ## Installation
 

docs/commands.md

@@ -2,6 +2,14 @@
 
 Harpoon has several commands that you can use.
 
+The common way of using `harpoon` is to execute the available commands as follow:
+
+* [`harpoon analyze`](#analyze-) to analyze the project to infer symbols to be traced. This will create a `.harpoon.yml` file.
+
+* [`harpoon hunt`](#hunt-) by passing the `.harpoon.yml` file to trace the functions and get their system calls. This will generate the `./harpoon/` directory with the metadata that contains the system calls traced.
+
+* [`harpoon build`](#build-️) to read the metadata files and provide the **seccomp** profile.
+
 ## Analyze
 
 The `analyze` command is used to analyze the project's folder and get the list of function symbols you want to trace.
@@ -16,12 +24,20 @@ Run it on your project folder:
 sudo harpoon analyze --exclude .git/ .
 ```
 
+## Build
+
+The `build` command collect the metadata files (created by the `hunt` command under the `harpoon/` directory) and use them to create a **seccomp** profile based on their content.
+
+```sh
+sudo harpoon build -D ./harpoon/
+```
+
 ## Capture
 
 The `capture` command is the "core" of `harpoon`. This trace the function symbols passed as argument for the give binary.
 
 ```sh
-sudo harpoon capture -f github.com/alegrey91/fwdctl/pkg/iptables.interfaceExists .harpoon/interface.test
+sudo harpoon capture -f github.com/user/repo/pkg/pkgname.functionName .harpoon/packagebin.test
 ```
 
 The result, is a list of system call executed by the function during the run of the binary.
@@ -35,7 +51,7 @@ The command needs a file as input paramenter that is the result of the `analyze`
 This will loop over the entries of the file, capturing the system calls of each entry.
 
 ```sh
-harpoon hunt --file .harpoon.yml -S -D seccomp
+harpoon hunt --file .harpoon.yml -S
 ```
 
-This will create a directory `seccomp/` with the list of system calls traced from the execution of the different test binaries present in the `.harpoon.yml` file.
+This will create the directory `harpoon/` with the list of system calls traced from the execution of the different test binaries present in the `.harpoon.yml` file.