Start by pushing one door closed against the jamb.
How to adjust sliding mirror closet doors.
When you buy new mirrored closet doors the rollers at the bottom move effortlessly across the track.
With the right tools and instructions installing adjusting or removing sliding doors is a cinch.
Hold it against the jamb while you adjust the brackets as shown.
To fit the top and bottom tracks and insert the sliding doors you will need to measure the space cut the tracks to size and screw them into place before you can fit the doors.
Most sliding closet doors have a track on which the door glides back and forth.
Usually the mounting bracket screws have loosened up making the door sag and rub against the carpet or floor.
Do the same on the other.
Give those closet doors a couple of years however and you might start to run into problems.