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annagapuz/MacOSX-TerminalHints

Last active July 30, 2017 18:58
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MacOSX-TerminalHints
Benchmark your SSD or hard disk speed
To test write speed:
time dd if=/dev/zero bs=1024k of=tstfile count=1024
To test read speed:
time dd if=tstfile bs=1024k of=/dev/null count=1024
hdiutil convert -format UDRW -o ubcd.img /ubcd537.iso
diskutil list
insert your usb stick
diskutil list
diskutil unmountDisk /dev/diskN
sudo dd if=ubcd.img.dmg of=/dev/rdiskN bs=1m conv=sync
diskutil eject /dev/diskN
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