If you want to delete files by size (here files of 912345 bytes):
find . -size 912345c -print -exec rm -f {} \;
"First they ignore you, then they laugh at you, then they fight you, then you win." [Mahatma Gandhi]
If you want to delete files by size (here files of 912345 bytes):
find . -size 912345c -print -exec rm -f {} \;