On 09/12/12 23:44, Kris Deugau wrote:
I already have this and it's been working well for quite a while:
dpkg-query --showformat '\${status}\t\${version}\n' -W $pkg
Unfortunately I've just discovered it fails when $pkg is a virtual
package, and I have no way to tell ahead of time if this is the case or
not (nor does the caller care).
Is there a single command that can do this for both virtual and real
packages, a la "rpm -q --whatprovides"?
Some searching turned up references to apt-cache dumpavail, but that
isn't restricted to the currently installed packages. The --installed
option seems to be ignored for dump and dumpavail.
(Please CC me on replies.)
-kgd
Hi.
May be something like: (example for mail-transport-agent)
$ apt-cache showpkg mail-transport-agent \
| sed -ne'/Reverse Provides/,$p' \
| sed -ne '2,$s/ .*//p' \
| xargs -d'\n' sh -euf -c '
dpkg-query --showformat
"\${package}\t\${status}\t\${version}\n" -W "$@" 2>/dev/null \
| grep -v "not-installed"
' sh
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