[ubuntu-in] How to verify actual space on a disk (maybe OT)

[Ramnarayan.K]

In case people are wondering what crap was loaded onto the disk then
here is what ls looks like

/media/2022-62E3$ ls
!.#  ).+  ?.?  ?.?  ?.?  1.3  9.;  A.C  i.k  i.K  q.s  Q.s  y.[  y.{
!.#  ).+  ?.?  ?.?  ?.?  1.3  a.c  A.C  i.k  i.K  q.s  Q.s  y.[  °  ?   ?.?
!.#  ).+  ?.?  ?.?  ?.?  9.;  a.c  A.C  i.k  i.K  q.s  Q.s  y.{  °  ?   ?.?
!.#  ).+  ?.?  ?.?  1.3  9.;  a.c  A.C  i.k  i.K  q.s  y.[  y.{  °  ?   ?.?
!.#  ).+  ?.?  ?.?  1.3  9.;  a.c  A.C  i.k  i.K  Q.s  y.[  y.{  °  ?   ?.?
!.#  ).+  ?.?  ?.?  1.3  9.;  a.c  A.C  i.k  q.s  Q.s  y.[  y.{  °  ?   ?.?
!.#  ?.?  ?.?  ?.?  1.3  9.;  a.c  A.C  i.K  q.s  Q.s  y.[  y.{  °  ?   ?.?
).+  ?.?  ?.?  ?.?  1.3  9.;  a.c  i.k  i.K  q.s  Q.s  y.[  y.{  °  ?   ?.?
ram at ram-laptop:/media/2022-62E3$

tried opening these files with gedit / sudo gedit etc i get error
messages , tried the less command and that too gives me error
messages.

In case you are wondering why i am curious, its because i want to know
how come some software can fool an OS (in this case linux) into
believing something that it is not. Is there a chance for malware to
be loaded on to be exploited ??

ram