Unix Questionable commands in server window

[x10sion]

Hi guys,

I have this and i've never seen it before on my server. i think its just retrogen but iv never seen it and just want to make sure its ok?

Spoiler

2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-68, 77].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-69, 77].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-69, 77].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 66].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 66].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 77].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 77].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 67].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 67].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-71, 77].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-71, 77].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-71, 78].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-71, 78].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 68].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 68].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 69].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 69].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 70].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 70].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 71].
2013-12-20 18:25:35 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 71].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 72].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 72].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 73].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 73].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 74].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 74].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 75].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 75].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively flattening bedrock for the chunk at [-70, 76].
2013-12-20 18:25:36 [INFO] [CoFHWorld] Retroactively generating features for the chunk at [-70, 76].