dont wory nothing important there ...i can copy any file there if i want...
before install pepermint i have mint . Then i download linux OS iso for this old laptop for test it .
Finaally i choose pepermint because is very lighwate and pretty.
I have secont account because the laptop use it from my children many times.
i have passwords from all users and admin privilages ..
i think when install pepermint dont tick format option for /home partition...
thats is the story..
Please help me delete dim2 and dimint other way must re-install pepermint with formating partitions.
i am not hacker or something illegal...

Thank you for your attention your help and your patience !!!
dimzev@dimpeper-HP-Compaq-6730b-GW687AV ~ $ groups dimzev
dimzev : dimzev adm dialout fax cdrom floppy tape sudo audio dip video plugdev lpadmin scanner sambashare
dimzev@dimpeper-HP-Compaq-6730b-GW687AV ~ $ groups dimpeper
dimpeper : dimpeper adm cdrom sudo dip plugdev lpadmin sambashare
dimzev@dimpeper-HP-Compaq-6730b-GW687AV ~ $ groups dim2
groups: ‘dim2’: no such user
dimzev@dimpeper-HP-Compaq-6730b-GW687AV ~ $ groups dimint
groups: ‘dimint’: no such user
dimzev@dimpeper-HP-Compaq-6730b-GW687AV ~ $