Shall I run a sudo-required script in some shell configuration file?

Question

Is it a good idea to put a sudo command in a shell configuration file?

I have a bash script /home/t/bin/changeCpuFreq.sh which can change my cpu frequency. The line 40 in my script is

echo $1 >  /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed

Which determines that running the script requires root privillege

I would like the script to run automatically every time I reboot Ubuntu or log in, and wonder where to put the command to run the script?

1. In ~/.profile, I put

   sudo /home/t/bin/changeCpuFreq.sh 1600000
   

   When I reboot Ubuntu, after logging in, Ubuntu reports an error

   Error found when loading /home/t/profile.

   sudo: no tty present and no askpass program specified.

   As a result the session will not be configured correctly.

2. In /etc/profile, I put the following at the end:

   /home/t/bin/changeCpuFreq.sh 1600000 
   

   When I reboot Ubuntu, I have an error before logging in:

   Error found when loading /etc/profile:

   /home/t/bin/changeCpuFreq.sh: line 40

   /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed: Permission denied

   As a result the session will not be configured correctly.

   Is it because I didn't set sudo up, and how shall I use sudo for a command in /etc/profile?

Thanks.