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tar doubts - problem with tar

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# 1  
Old 09-06-2008
tar doubts - problem with tar
The below tar command works fine for me,

Code:
tar -cvf - `find ./srcdir -type d` | (cd ./destdir ; tar -xvf - )

but this version is giving error to me:

Code:
cd ./srcdir &&
tar -cf - . |
gzip -9 |
cd ../destdir &&
gzip -d |
tar -xf -

error is: gzip: compressed data not read from a terminal. Use -f to force decompression.
For help, type: gzip -h
tar: This does not look like a tar archive
tar: Error exit delayed from previous errors
# 2  
Old 09-06-2008
gzip is not receiving the input from the pipeline, it is lost by the cd. However some versions of cd will allow you to do something like tar cf - | cd target | tar xf -, or use a subshell (put parentheses around the cd; gzip -d | tar xf -)

Some versions of tar also have an option to switch directories when starting; with GNU tar, this is tar -C directory
# 3  
Old 09-08-2008
Quote:
Originally Posted by era
gzip is not receiving the input from the pipeline, it is lost by the cd. However some versions of cd will allow you to do something like tar cf - | cd target | tar xf -, or use a subshell (put parentheses around the cd; gzip -d | tar xf -)

Some versions of tar also have an option to switch directories when starting; with GNU tar, this is tar -C directory
Nice solution, works fine for me. Thanks a lot.
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