Tar and zip at same time - for hot backup

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Originally posted by pando
you can tar and zip at same time but I dont think you can do that with appending

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Well i dont know about zip(haven't tried it),but you can do tar and compress at the same time with appending using a pipe.
An example:

Quote:

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mknod pipe_file p
compress < pipe_file > file_tarzip.Z &
tar cvf pipe_file *.*(or whatever you want to tar)

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thats not appending to an already compressed file

and tar (on linux at least) has a z flag to compress as it goes

yea that´s not appending unfortunately....

:o I misunderstood the question.It meant appending to a existing zip file and not simultaneous tar and compression.

Hi All,

Thanks for the answers. We leave it to SUN MIcrosystems to add an additional feature in their next version????

Regards,

K.Diwakar

or do backups properly?

or tar up all the files and zip at the same time

or zip the files when backup and at the end tar the zips :D