Linux command (system, advance)
Disk/ storage part:
dd command: used to back up disk or partition, most often used for backup file, like ghost
dd if=/'name of the iso file name[to]' of='/backup partition[from]'
ex: dd if =/filename.iso of /dev/sdd
or
dd if =/dev/sfa of=/dev/sdd
df command: see the size of the hdd
#df -h
#df
extract and compress file:
extract file
tar -xzf zzz.tar.gz
compress file 'file '
tar -tzvf compressed.tar.gz
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