How to Fix RAR File Not Open in Ubuntu (Extract winrar folder)

How to Extract RAR Files in Ubuntu
#UbuntuWinrar

Codes:
sudo apt-get install unrar
sudo rm /var/lib/dpkg/lock

[smiley]

bro you've saved my day....thanks.
Much support from Uganda

[sahiljannu]

But it's not working please help me please please

[umeshumesh]

Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
its coming likethis bro please help bro

[b.g.d.thewin]

I need help after the code in terminal it says "package unrar is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source"
PLEASE HELP

[HardFard]

When i clicl on terminal, it doesnt open

[epkzvecs]

when i puy in terminal i doesnt pops up ;(

[VukVukasinovic-gz]

it doesent work for my ubuntu i need to know why

[cold]

i need one where i cant open the file it says "an error occurred while loading archive"...

[VijayaRanaware]

just look at the size of that close button my god .

[mufeezkhan]

After entering 1 step so what password is write in the second step?