Chris Bannister a écrit : > On Thu, Nov 19, 2015 at 06:41:50AM +0100, Jochen Spieker wrote: >> Brian: >>> To remove every package and the package lists in apt/archives: >>> >>> apt-get clean. >> The package lists are unaffected by the clean operation. You do not need >> to run an update afterwards. > > Then explain the difference between: > > 1) apt-get clean > apt-cache show pa<TAB><TAB> > > and > > 2) apt-get clean > apt-get update > apt-cache show pa<TAB><TAB>
Using strace, the difference seems to be that apt-get clean removes /var/cache/apt/pkgcache.bin. However you don't need to run apt-get update : this file seems to be rebuilt by any apt command. apt-get clean apt-cache show anypatternyoulike apt-cache show pa<TAB><TAB>
