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Showing content from https://github.com/moby/moby/issues/7710 below:

support wildcards and destination names in `docker cp` · Issue #7710 · moby/moby · GitHub

Make docker cp work more like scp

Usage: docker cp CONTAINER:PATH HOSTPATH

Proposed

1 Allow the PATH to contain standard filesystem wildcards, and then expand them on the container side.
2 Allow the HOSTPATH to be the resulting filename if the daemon sends it a single file.

right now

HOSTPATH is a dir, which will even be created for you - rather than the name of the resulting file, and wildcards are not expanded.

tmp $ mkdir sven
tmp $ docker cp sven:/etc/* sven
2014/08/25 14:22:37 Error response from daemon: Could not find the file /etc/* in container sven
tmp $ docker cp sven:/etc/passwd sven/banana
tmp $ ls sven/
banana  passwd
tmp $ more sven/*

*** sven/banana: directory ***

tmp $ cd sven
sven $ docker cp sven:/etc/* .
2014/08/25 14:22:23 Error response from daemon: Could not find the file /etc/* in container sven

Joshfindit, plup, hoatle, jasonschroeder-sfdc, frgtn and 152 more


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