shell_init.c 28 interactive shell settings
               main.c 88 start of shell JOBC is ON
               main.c 64 [hash -r] stack=[0] state=[4]
        token_print.c 29 13:[hash]
        token_print.c 29 13:[-r]
               main.c 64 [hash] stack=[0] state=[4]
        token_print.c 29 13:[hash]
               main.c 64 [ls] stack=[0] state=[4]
        token_print.c 29 13:[ls]
               main.c 64 [ls] stack=[0] state=[4]
        token_print.c 29 13:[ls]
               main.c 64 [grep] stack=[0] state=[4]
        token_print.c 29 13:[grep]
               main.c 64 [hash] stack=[0] state=[4]
        token_print.c 29 13:[hash]
               main.c 64 [hash -r] stack=[0] state=[4]
        token_print.c 29 13:[hash]
        token_print.c 29 13:[-r]
               main.c 64 [hash] stack=[0] state=[4]
        token_print.c 29 13:[hash]
         shell_exit.c 17 shell_exit()