I tried to move a file and I think i messed up the syntax. mv /path/to/my/old-filename.mkv ./new file name with spaces.mkvI meant to move it to the current directory. (I understand I didn't need the ./) My problem is I can't find the file anywhere. I've tried using find across the entire filesystem to no luck (using a keyword in both old and new file names)I have the ability to get another copy of the file (luckily). If its been deleted, thats ok. It is a large-ish file, so if its sitting somewhere I'd like to figure it out so its not consuming disk space. 
Where did mv put my file?
mv
Simply use find,for exampleyou do the bad mv in the last three hoursin the dir homeso you will dofind /home -type f -mmin -1800 -lsthis command will find all files modified in the last 3 hours(60m * 3h = 1800 minutes) and made a output like ls -lAnother better command can befind /home -type f -mmin -1800 -print0 |xargs -0 file|grep -i matroskato discover the matroska fileOf course adapt time with your time..can be more of 3 hours.