tar question
 

i need to know if a tar file has been compressed...

currently i'm running the command: tar -xvf filename.tar

this tar file is 142GB big. is this a compressed size? if it was the command i'm running wouldn't work right?

i'm wondering because i need to know if i will have enough disk space to extract this file.

use the file command
file <tar file name>
will say if this is compressed or not.

never knew i could do this.. thank you!