Bash autocompletion [closed]

When I'm typing in the bash, something is trying to autocomplete my input in a rather weird way, see picture attached. I'm not pressing tab or something, just trying to type like "describe table" or "select"

What's causing it? How to unmount?

Screenshot #1

Screenshot #2

The previous user denies installing any utils of the kind


There was a gxneur installed, looks like it was the cause of the problem. I removed it from system, and now the bash feels fine while i'm typing, everything looks ok, no doubled letters or anything.