6 Alternatives + Submit Alt
-
This command utilizes 'pv' to show dd's progress. Notes on use with dd: -- dd block size (bs=...) is a widely debated command-line switch and should usually be between 1024 and 4096. You won't see much performance improvements beyond 4096, but regardless of the block size, dd will transfer every bit of data. -- pv's switch, '-s' should be as close to the size of the data source as possible. -- dd's out file, 'of=...' can be anything as the data within that file are the same regardless of the filename / extension. Show Sample Output
20sudo dd if=/dev/sdc bs=4096 | pv -s 2G | sudo dd bs=4096 of=~/USB_BLACK_BACKUP.IMG -
5sudo dd if=/dev/sdc bs=4096 | pv -s `sudo mount /dev/sdc /media/sdc && du -sb /media/sdc/ |awk '{print $1}' && sudo umount /media/sdc`| sudo dd bs=4096 of=~/USB_BLACK_BACKUP.IMG
-
Uses the pv utility to show progress of data transfer and an ETA until completion. You can install pv via Homebrew on macOS Show Sample Output
3sudo pv -tpreb /path/to/source | sudo dd bs=4096 of=/path/to/destination -
This is a useful command to backup an sd card with relative total size for piping to pv with a progressbar
2export BLOCKSIZE='sudo blockdev --getsize64 /dev/sdc' && sudo dd if=/dev/sdc bs=1MB | pv -s $BLOCKSIZE | gzip -9 > USB_SD_BACKUP.img.gz -
Sets the size of the disk to $DISKSIZE so that the percentage readout of pv is correct. set /dev/sdb to whatever your disk is /dev/sdX. Next pipe dd to pv, then pipe pv to gzip so that you get a gzipped image file. Show Sample Output
0DISKSIZE=`sudo blockdev --getsize64 /dev/sdb` && sudo dd bs=4096 if=/dev/sdb | pv -s $DISKSIZE | sudo gzip -9 > ~/USBDRIVEBACKUP.img.gz
What do you think?
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
You must be signed in to comment.
What's this?
commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.
Similar Commands
Stay in the loop…
- Follow the Tweets.
-
Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10 - Subscribe to the feeds.
-
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
Subscribe to the feed for:
- » all commands
- » commands with 3 up-votes (commandlinefu3)
- » commands with 10 up-votes (commandlinefu10)
stat -c %s FILEleaving:dd if=FILE | pv -s $(stat -c %s FILE) | dd of=OUTPUT