これらのbash完了提案はどのような関係がありますか？

~はい$HOME。私はcd ~そうです/home/cat。これまではとても簡単ですか？

Bashでは、以下が発生します。

cat @ mint-kitty : ~/Downloads $ cd ~ # from /home/cat/Downloads to /home/cat/, as an example, but behaviour happens with any directory
cat @ mint-kitty : ~ $ cd ~<TAB>proxy/ # oh? what's this?
cat @ mint-kitty : /bin $ cd ~<TAB><TAB>
~ais                ~clamav/            ~debian-tor/        ~gitlog             ~list               ~mixmaster/         ~ntp                ~redis/             ~stunnel4           ~systemd-resolve    ~uuidd/
~avahi/             ~cl-builder/        ~dirmngr/           ~gnats              ~lp                 ~monkeysphere/      ~oident/            ~roard/             ~sync/              ~systemd-timesync/  ~vde2-net
~avahi-autoipd/     ~clickpkg           ~dnsmasq/           ~irc                ~mail/              ~mpd/               ~pdnsd/             ~root/              ~syncache/          ~timidity/          ~whoopsie
~backup/            ~colord/            ~epmd               ~jetty/             ~man/               ~muroard/           ~postgres/          ~rtkit/             ~sys/               ~tomcat8            ~www-data/
~bin/               ~daemon/            ~festival           ~libvirt-dnsmasq/   ~mdm/               ~mysql              ~proxy/             ~saned              ~syslog             ~trafficserver      
~bind/              ~Debian-exim/       ~games/             ~libvirt-qemu/      ~memcache           ~news               ~pulse              ~speech-dispatcher  ~systemd-bus-proxy/ ~uml-net            
~cat/               ~debian-spamd/      ~gitdaemon          ~lightdm/           ~messagebus/        ~nobody             ~radvd              ~sshd/              ~systemd-network    ~uucp               
cat @ mint-kitty : /bin $ cd ~systemd-resolve 
bash: cd: /run/systemd/resolve: No such file or directory
1 | cat @ mint-kitty : /bin $ cd ~redis
cat @ mint-kitty : /var/lib/redis $ cd ~clamav
cat @ mint-kitty : /var/lib/clamav $ cd ~irc
bash: cd: /var/run/ircd: No such file or directory
1 | cat @ mint-kitty : /var/lib/clamav $ cd ~gnats
bash: cd: /var/lib/gnats: No such file or directory
1 | cat @ mint-kitty : /var/lib/clamav $ cd ~sshd
cat @ mint-kitty : /var/run/sshd $ cd ~nobody
bash: cd: /nonexistent: No such file or directory

^{明らかに<TAB>、バイトは実際のテキストではなくTABキーの代わりにASCIIに送信されます9。}

PS1現在のパスと戻りコードを示すプロンプトに情報を残しました。私の質問は、これらのディレクトリオートコンプリートの関連性は何ですか~？

私はこれらとそれらがよりよく理解するために指す場所を表にしました（しかし今はもっと混乱しています）。

thing            points-at?
===========================================
~ais             ENOENT /home/ais/         # user ais uid=156(ais) gid=163(ais) groups=163(ais) does not have an entry in /home/
~avahi           /var/run/avahi-daemon/
~avahi-autoipd   /var/lib/avahi-autoipd/
~backup          /var/backups/
~bin             /bin/
~bind            /var/cache/bind/
~cat             /home/cat/
~clamav          /var/lib/clamav/
~cl-builder      /usr/share/common-lisp//  # two slashes
~clickpkg        ENOENT /nonexsistent/     # yes, really
~colord          /var/lib/colord/
~daemon          /usr/sbin/                # ??
~Debian-exim     /var/spool/exim4/         # ??
~debian-spamd    /var/lib/spamassassin/
~debian-tor      /var/lib/tor/
~dirmngr         /var/cache/dirmngr/
~dnsmasq         /var/lib/misc/             # ??
~epmd            /var/run/epmd/
~festival        ENOENT /home/festival      # user festival uid=131(festival) gid=29(audio) groups=29(audio) does not have an entry in /home/
~games           /usr/games/                # ???
~gitdaemon       ENOENT /nonexistent/
~gitlog          ENOENT /nonexistent/
~gnats           /var/lib/ircd/
~jetty           /usr/share/jetty8/
~libvirt-dnsmasq /var/lib/libvirt/
~libvirt-qemu    /var/lib/libvirt/
~lightdm         /var/lib/lightdm/
~list            ENOENT /var/list/
~lp              ENOENT /var/spool/lpd/
~mail            /var/mail/
~man             /var/cache/man/
~mdm             /var/lib/mdm/
~memcache        ENOENT /nonexistent/
~messagebus      /var/run/dbus
~mixmaster       /var/lib/mixmaster/
~monkeysphere    /var/lib/monkeysphere/
~mpd             /var/lib/mpd/
~muroard         /var/lib/muroard/
~mysql           ENOENT /nonexistent/
~nobody          ENOENT /nonexistent/
~ntp             ENOENT /home/ntp            # user ntp uid=107(ntp) gid=114(ntp) groups=114(ntp) does not have an entry in /home/
~oident          /                           # ????
~pdnsd           /var/cache/pdnsd/
~postgres        /var/lib/postgresql/
~proxy           /bin/
~pulse           ENOENT /var/run/pulse
~radvd           ENOENT /var/run/radvd
~redis           /var/lib/redis
~roard           /var/lib/roard
~root            /root
~rtkit           /proc
~saned           ENOENT /var/lib/saned
~speech-dispatcher ENOENT /var/run/speech-dispatcher
~sshd            /var/run/sshd
~stunnel4        ENOENT /var/run/stunnel4
~sync            /bin/
~syncache        /var/run/syncache-drb/
~sys             /dev/                       # ???
~syslog          ENOENT /home/syslog         # user syslog uid=104(syslog) gid=109(syslog) groups=109(syslog),4(adm) does not have an entry in /home/
~systemd-bus-proxy /run/systemd/
~systemd-network ENOENT /run/systemd/netif/
~systemd-resolve ENOENT /run/systemd/resolve/
~systemd-timesync /run/systemd/
~timidity        /etc/timidity/
~tomcat8         ENOENT /usr/share/tomcat8/
~trafficserver   ENOENT /var/run/trafficserver/
~uml-net         ENOENT /home/uml-net/       # user uml-net uid=146(uml-net) gid=155(uml-net) groups=155(uml-net) does not have an entry in /home/
~uucp            ENOENT /var/spool/uucp/
~uuidd           /run/uuidd/
~vde2-net        ENOENT /var/run/vde2/
~whoospie        ENOENT /nonexistent/
~www-data        /var/www

列thingは表示された項目で表示されます~<TAB><TAB>。ディレクトリを指すpoints-atかthing、存在しない場所を指しますthing。

たとえば、~cat与えられたbash: /home/cat: Is a directory、だから~cat -> /home/catしかし~clickpkg与えられたbash: /nonexistent: No such file or directory、だから~clickpkg -> ENOENT /nonexistent/。

私が持っているすべてのデータを提供しました。ここで何が起こっているのでしょうか？~秘密が何かに拡張されたのではないだろうか？