And, yes, it works this way: $ sed -e '1,$s/%/%%/g' zrc.py | zenity --text-info --editable
-- zenity zenity --text-info --editable crashes on 56K text file on stdin https://launchpad.net/bugs/83549 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs