Recursive copy of specific files in Unix/Linux? [closed]

Answer 1

tar -cf - `find . -name "*.jar" -print` | ( cd /destination_dir && tar xBf - )

Answer 2

rsync is useful for local file copying as well as between machines. This will do what you want:

rsync -avm --include='*.jar' -f 'hide,! */' . /destination_dir

The entire directory structure from . is copied to /destination_dir, but only the .jar files are copied. The -a ensures all permissions and times on files are unchanged. The -m will omit empty directories. -v is for verbose output.

For a dry run add a -n, it will tell you what it would do but not actually copy anything.

Answer 3

If you want to maintain the same directory hierarchy under the destination, you could use

(cd SOURCE && find . -type f -name \*.jar -exec tar cf - {} +) \
  | (cd DESTINATION && tar xf -)

This way of doing it, instead of expanding the output of find within back-ticks, has the advantage of being able to handle any number of files.

Answer 4

If you don't need the directory structure only the jar files, you can use:

shopt -s globstar
cp **/*.jar destination_dir

If you want the directory structure you can check cp's --parents option.

Answer 5

find . -name \*.jar | xargs cp -t /destination_dir

Assuming your jar filenames do not contain spaces, and your cp has the "-t" option. If cp can't do "-t"

find . -name \*.jar | xargs -I FILE cp FILE /destination_dir

Answer 6

If your find has an -exec switch, and cp an -t option:

find . -name "*.jar" -exec cp -t /destination_dir {} +

If you find doesn't provide the "+" for parallel invocation, you can use ";" but then you can omit the -t:

find . -name "*.jar" -exec cp {} /destination_dir ";"