On Tue, 29 May 2018 09:14:12 -0400 Greg Wooledge said: > On Sat, May 26, 2018 at 09:31:14PM +0300, Abdullah Ramazanoğlu wrote: > > apt or apt-get upgrade does upgrade in passive mode: It never install new > > packages, never removes existing ones. Just upgrades existing ones as far as > > possible. > > That's incorrect. One of the differences between apt and apt-get is > that apt WILL install new packages when doing "apt upgrade" (but it > will not remove existing packages). > > Another difference is that apt will remove all of the .deb files from > /var/cache/apt/archives that were downloaded for the CURRENT apt command > session (but will not remove any that were already there). (This > behavior can be changed in a config file.)
Hmm yes, apt upgrade do install new packages. I didn't look at the man page for apt and assumed that -at least- the same keywords would work the same in both apt and apt-get. I was wrong. I wonder why apt should be so close to apt-get but confusingly different. One has dist-upgrade with certain functionality, the other has full-upgrade with different functionality. Upgrade function works different between them. Who knows what else. AIUI apt-get is the older and more complete tool. I don't know what was the reason for inventing apt. It is not higher level, it is not as complete as apt-get, it is not conformant (to apt-get). Perhaps the idea was to unify apt-get and apt-cache into one tool, but it was done badly IMO. I don't use apt anyway. Sticking to good old apt-get and apt-cache. Regards -- Abdullah Ramazanoğlu
