try to batch step 8 so it can be all copy-paste at once

howto/upgrades/bookworm.md

@@ -156,19 +156,20 @@ See the "conflicts resolution" section below for how to handle
         export LC_ALL=C.UTF-8 &&
         sudo ttyrec -a -e screen /var/log/upgrade-bookworm.ttyrec
 
-        apt-mark manual bind9-dnsutils puppet-agent
-        apt purge $(dpkg -l | awk '/^rc/ { print $2 }') # purge removed packages
-        apt autopurge -y
-        apt purge $(deborphan --guess-dummy)
-        while deborphan -n | grep -q . ; do apt purge $(deborphan -n); done
-        apt autopurge -y
-        apt clean
-        # review and purge older kernel if the new one boots properly
-        dpkg -l 'linux-image*'
-        # review obsolete and odd packages
-        apt purge '?obsolete'
-        apt list "?narrow(?installed, ?not(?codename($(lsb_release -c -s | tail -1))))"
-        printf "End of Step 8\a\n"
+        apt-mark manual bind9-dnsutils puppet-agent &&
+        : purge removed packages &&
+        apt purge $(dpkg -l | awk '/^rc/ { print $2 }') &&
+        apt autopurge &&
+        apt purge $(deborphan --guess-dummy) &&
+        while deborphan -n | grep -q . ; do apt purge $(deborphan -n); done ^^
+        apt autopurge &&
+        apt clean &&
+        ; review and purge older kernel if the new one boots properly &&
+        dpkg -l 'linux-image*' | less &&
+        ; review obsolete and odd packages &&
+        apt purge '?obsolete' && apt autopurge &&
+        apt list "?narrow(?installed, ?not(?codename($(lsb_release -c -s | tail -1))))" &&
+        printf "End of Step 8\a\n" &&
         shutdown -r +1 "bookworm upgrade step 8: testing reboots one final time"
 
 [this guide to free up space]: http://www.debian.org/releases/buster/amd64/release-notes/ch-upgrading.en.html#sufficient-space