This command will remove all files which older than 365 days.  Be careful when you need to run this command. Before add "rm" use "ls"  option to see that  files..

• List all files older than 365 days.

#find /pathtofile -type f -mtime +365 -prune | xargs ls  -ld

For  Linux  also;

#find /tmp -atime +365

• Remove all files older than 365 days.

#find /pathtofile -type f -mtime +365 -prune | xargs rm –r