I am using this property in order to remove a bunch of file cmdProperty "rm" ["-f", "-v", "/etc/schroot/chroot.d" (chrootname ++ "-sbuild-*")] during the process it is ok xxx@xxxx rm -f -v /etc/schroot/chroot.d/jessie-i386-sbuild-* ... done but ~$ ls /etc/schroot/chroot.d/jessie-i386-sbuild-* /etc/schroot/chroot.d/jessie-i386-sbuild-0ClOnm /etc/schroot/chroot.d/jessie-i386-sbuild-fAxdL6 /etc/schroot/chroot.d/jessie-i386-sbuild-PG9d8D /etc/schroot/chroot.d/jessie-i386-sbuild-tweTLd /etc/schroot/chroot.d/jessie-i386-sbuild-1qXV4i /etc/schroot/chroot.d/jessie-i386-sbuild-hLZtEV /etc/schroot/chroot.d/jessie-i386-sbuild-thaExp /etc/schroot/chroot.d/jessie-i386-sbuild-uJHP6m /etc/schroot/chroot.d/jessie-i386-sbuild-6wSjGH /etc/schroot/chroot.d/jessie-i386-sbuild-KNUVIo /etc/schroot/chroot.d/jessie-i386-sbuild-tUcBcL /etc/schroot/chroot.d/jessie-i386-sbuild-UnfRTK So it seems that this property did not worked. So I ran propellor with PROPELLOR_DEBUG=1 and the return code of the rm command is a Success When I use a scriptProperty it works scriptProperty [ "rm -f -v " ++ "/etc/schroot/chroot.d" (chrootname ++ "-sbuild-*") ] So it seems that something is wrong with the cmdProperty