add bash autocompletion for screen -r for detached sessions

[Karl-Philipp Richter]

Step to reproduce:

  * `screen sleep 10000`
  * press <kdb>Ctrl</kbd>+<kbd>a</kbd> and <kbd>d</kbd> to detach
  * make sure the session is listed with `screen -list`
  * type `screen -r <tab><tab>`

The auto-completion offers to display all binaries, but should help to autocomplete the list of available sessions.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: screen 4.2.1-3
Uname: Linux 4.0.0-040000-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
Date: Thu May 7 10:37:10 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-04-20 (16 days ago)
InstallationMedia: Ubuntu-Server 14.10 "Utopic Unicorn" - Release amd64 (20141022.2)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: screen
UpgradeStatus: Upgraded to vivid on 2015-04-24 (12 days ago)

[Axel Beckert (xtaran)]

Hi,

I assume you refer to autocompletion with bash as shell since e.g. zsh's screen autocompletion already has that feature.

[Axel Beckert (xtaran)]

Hi,

Karl-Philipp Richter wrote:
> ** Package changed: screen (Ubuntu) => bash-completion (Ubuntu)

Indeed, the package bash-completion already ships a file at
/usr/share/bash-completion/completions/screen.

So yes, the issue is better suited being filed against
bash-completion. (If there wasn't such a file, it could have been
shipped with screen instead, too. But since it's already there...)