On Mon, Feb 09, 2026 at 02:56:12AM +0100, Vincent Lefevre wrote: > Package: apt > Version: 3.1.15 > Severity: normal > > I get the following: > > qaa:~> apt upgrade -s | grep '^Inst libbs2b0' > > WARNING: apt does not have a stable CLI interface. Use with caution in > scripts. > > Inst libbs2b0 [3.1.0+dfsg-8+b1] (3.1.0+dfsg-8+b2 Debian:testing, > Debian:unstable [amd64]) [] > qaa:~> apt-get upgrade -s | grep '^Inst libbs2b0' > Inst libbs2b0 [3.1.0+dfsg-8+b1] (3.1.0+dfsg-8+b2 Debian:testing, > Debian:unstable [amd64]) > > For the first one, I get empty square brackets, but not for the > second one. > > With "apt install -s libbs2b0" and "apt-get install -s libbs2b0", > there are no empty square brackets. > > Moreover, the apt-get(8) man page says for -s (--simulate): > > Square brackets indicate broken packages, and empty square brackets > indicate breaks that are of no consequence (rare). > > but actually, this is quite common: > > qaa:~> apt upgrade -s | grep -c '^Inst .* \[\]$' > > WARNING: apt does not have a stable CLI interface. Use with caution in > scripts. > > 145 > qaa:~> apt-get upgrade -s | grep -c '^Inst .* \[\]$' > 131
I'd be happy to consider looking at any concrete bugs you encounter; but comparing two different commands* and saying they behave differently isn't very helpful. * apt upgrade is roughly apt-get upgrade --with-new-pkgs; apt-get upgrade is roughly apt upgrade --without-new-pkgs; but of course there are more differences, and the interface is versioned now; see apt-config dump | grep ^Version for all features enabled in 1.0 and newer (apt-get is the 0.x compat mode) -- debian developer - deb.li/jak | jak-linux.org - free software dev ubuntu core developer i speak de, en
