1*17a85657Srtm #include "user.h" 2*17a85657Srtm #include "types.h" 3*17a85657Srtm #include "fs.h" 4*17a85657Srtm #include "fcntl.h" 5*17a85657Srtm 6*17a85657Srtm char *args[100]; 7*17a85657Srtm 8*17a85657Srtm int 9*17a85657Srtm main(void) 10*17a85657Srtm { 11*17a85657Srtm char buf[128]; 12*17a85657Srtm int pid; 13*17a85657Srtm 14*17a85657Srtm while(1){ 15*17a85657Srtm write(1, "$ ", 2); 16*17a85657Srtm gets(buf, sizeof(buf)); 17*17a85657Srtm if(buf[0] == '\0') 18*17a85657Srtm continue; 19*17a85657Srtm pid = fork(); 20*17a85657Srtm if(pid == 0){ 21*17a85657Srtm args[0] = buf; 22*17a85657Srtm args[1] = 0; 23*17a85657Srtm exec(buf, args); 24*17a85657Srtm write(1, buf, strlen(buf)); 25*17a85657Srtm write(1, ": not found\n", 12); 26*17a85657Srtm exit(); 27*17a85657Srtm } 28*17a85657Srtm if(pid > 0) 29*17a85657Srtm wait(); 30*17a85657Srtm } 31*17a85657Srtm } 32