tc not taking stdin as input for creaing tc rules

Following command is not executing. It gives tc help output in reply.

printf "class del dev eno2 parent 1: classid 1:1
class del dev eno2 parent 1: classid 1:2
class del dev eno2 parent 1: classid 1:3
class del dev eno2 parent 1: classid 1:4
class del dev eno2 parent 1: classid 1:5
class del dev eno2 parent 1: classid 1:6
class del dev eno2 parent 1: classid 1:7
class add dev eno2 parent 1:  classid 1:1 htb rate 100000000bit burst
10M ceil 100000000bit prio 1
class add dev eno2 parent 1:  classid 1:2 htb rate 100000000bit burst
10M ceil 100000000bit prio 1
class add dev eno2 parent 1:  classid 1:3 htb rate 100000000bit burst
10M ceil 100000000bit prio 1
class add dev eno2 parent 1:  classid 1:4 htb rate 100000000bit burst
10M ceil 100000000bit prio 1
class add dev eno2 parent 1:  classid 1:5 htb rate 100000000bit burst
10M ceil 100000000bit prio 1
class add dev eno2 parent 1:  classid 1:6 htb rate 100000000bit burst
10M ceil 100000000bit prio 1
class add dev eno2 parent 1:  classid 1:7 htb rate 100000000bit burst
10M ceil 100000000bit prio 1
" | /usr/sbin/tc -force -b