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I almost done everything when backup my home directory then store these compression file in file /var/backups ... but in case I want to encrypt that backup It refuse cuz of

tar: Cowardly refusing to create an empty archive

this is my command

tar -zcvf /home/rehab | gpg --symmetric --cipher-algo aes256 -o 
var/backups/myhome.tar.gz.gpg
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    There is no such directory as var, it should be /var perhaps that's the issue Nov 28, 2019 at 0:11

1 Answer 1

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From tar --help:

-f, --file=ARCHIVE         use archive file or device ARCHIVE

With your f option tar is expecting an output file, like foo.tar.gz. So this should work:

tar -zcv /home/rehab | gpg --symmetric --cipher-algo aes256 -o /var/backups/myhome.tar.gz.gpg

Mind the / in front of /var

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  • yes that almost work but the permission denied when creating in the /var/backups , even in sudo permission, first ask me about the password of gpg then compress file then encrypt all of them but when put that file in folder /var/backups permission denied
    – Rehab
    Nov 28, 2019 at 14:11
  • To write in /var you need sudo privileges. Nov 28, 2019 at 14:13
  • I write sudo before the command but didn't ask me to enter the sudo password because the window of gpg password displayed in the first , and in root shill the gpg password window didn't display then the output is operation canceled
    – Rehab
    Nov 28, 2019 at 14:17

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