CODEWITHSUNDEEP
linuxshelltar
p zankat
p zankat

Reputation: 135

What are the ways to transform directory structure in a tar using tar command

I want to create a tar file of a list of files. The list of files should be read from a separate file named input.txt.

This is the content of the input.txt -

The compressed file should have a directory structure -

/var/opt/ if exists in input file path, it should be replaced with /logs.

This is the expected output when I extract the tar file in say root directory.

Upvotes: 1

Views: 2825

Answers (3)

p zankat
p zankat

Reputation: 135

This has worked for me - tar -czf myarchive.tar -T /var/opt/input.txt --transform='s|^var/opt/|logs|'

Upvotes: 1

ceving
ceving

Reputation: 23764

Use the transform option:

tar cf archive.tar --transform 's%^var/opt%logs%' /var/opt

Upvotes: 4

Bodo
Bodo

Reputation: 9845

The script below demonstrates a solution based on these questions and answers:

The commands are tested with GNU tar only.

#! /bin/sh
set -x

# prepare environment
mkdir -p foo/bar
rm -f input.txt
rm -f output.tar

for i in 1 2 3
do
        echo $i > foo/bar/file$i
        echo foo/bar/file$i >> input.txt
done

# create archive with file name transformation
tar cvf output.tar --transform='s|^foo/bar|baz|' -T input.txt

# list archive contents
tar tvf output.tar

output

+ mkdir -p foo/bar
+ rm -f input.txt
+ rm -f output.tar
+ for i in 1 2 3
+ echo 1
+ echo foo/bar/file1
+ for i in 1 2 3
+ echo 2
+ echo foo/bar/file2
+ for i in 1 2 3
+ echo 3
+ echo foo/bar/file3
+ tar cvf output.tar '--transform=s|^foo/bar|baz|' -T input.txt
foo/bar/file1
foo/bar/file2
foo/bar/file3
+ tar tvf output.tar
-rw-r--r-- bmeissner/1049089 2 2021-07-05 16:11 baz/file1
-rw-r--r-- bmeissner/1049089 2 2021-07-05 16:11 baz/file2
-rw-r--r-- bmeissner/1049089 2 2021-07-05 16:11 baz/file3

Upvotes: 0

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