This is supposed to happen. Either your $HOME/.bashrc or /etc/bash.bashrc on your Ubuntu box is sourcing /etc/bash_completion. Comment that out and bash completion functions will not be loaded.
Thanks for your report. ** Changed in: imagemagick (Ubuntu) Sourcepackagename: imagemagick => bash Status: Unconfirmed => Rejected -- Stuff from imagemagick ends up as environment variables https://launchpad.net/bugs/83628 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs