/in/lab5.c: In function 'main':
/in/lab5.c:8:9: warning: implicit declaration of function 'strcpy' [-Wimplicit-function-declaration]
         strcpy(command[i],com);
         ^~~~~~
/in/lab5.c:8:9: warning: incompatible implicit declaration of built-in function 'strcpy'
/in/lab5.c:8:9: note: include '<string.h>' or provide a declaration of 'strcpy'