当我升级时，它会卡在这里：
user@plato:~# sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
bind9-host coreutils cpio curl dnsutils libbind9-90 libc-bin libc-dev-bin
libc6 libc6-dev libcgmanager0 libcurl3 libcurl3-gnutls libdns100
libdrm-intel1 libdrm-nouveau2 libdrm-radeon1 libdrm2 libisc95 libisccc90
libisccfg90 libjasper1 liblwres90 libplymouth2 libsepol1 libssl-dev
libssl-doc libssl1.0.0 linux-libc-dev mime-support multiarch-support ntp
ntpdate openssl plymouth plymouth-theme-ubuntu-text python3-distupgrade
ubuntu-release-upgrader-core unzip
39 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 16.0 …我最近陷入了一个困境，我在一个文件夹中，我想要cd一个子目录文件夹。只有一个文件夹，在这个文件夹里面，而且是一个很长的名字。
Home (I am here)
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--> /reallylongnamefolder
有没有办法进入该文件夹而不是输入：
cd reallylongnamefolder