rename sframepdbd+frame_$1pdb framepdbbash rename：未找到命令

It seems that the rename command is not available in your current shell. You can try using the mv command instead to achieve the same result:

for file in frame.pdb.*; do
    mv "$file" "$(echo "$file" | sed 's/frame\.pdb\.(\d+)/frame_$1.pdb/')"
done

This loop will iterate over all files matching the pattern frame.pdb.*, and for each file, it will use sed to replace the pattern frame.pdb.(\d+) with frame_$1.pdb.