user@host:~/autotools$ bst shell hello.bst -- hello

[--:--:--][        ][    main:core activity                 ] START   Loading elements
[00:00:00][        ][    main:core activity                 ] SUCCESS Loading elements
[--:--:--][        ][    main:core activity                 ] START   Resolving elements
[00:00:00][        ][    main:core activity                 ] SUCCESS Resolving elements
[--:--:--][        ][    main:core activity                 ] START   Resolving cached state
[00:00:00][        ][    main:core activity                 ] SUCCESS Resolving cached state
[--:--:--][        ][    main:hello.bst                     ] START   Staging dependencies
[00:00:00][        ][    main:hello.bst                     ] SUCCESS Staging dependencies
[--:--:--][        ][    main:hello.bst                     ] START   Integrating sandbox
[00:00:00][        ][    main:hello.bst                     ] SUCCESS Integrating sandbox
[--:--:--][        ][    main:hello.bst                     ] STATUS  Running command

    hello

Hello World!
This is amhello 1.0.