Generic way of obtaining hostname (missing command)

[anntnzrb]

After a fresh install of Arch Linux, I attempted to run pfetch, the hostname on the title section was missing, because indeed the hostname command didn't ship by default on this version of Arch (can't recall if it was present on older versions).

The environment variables HOSTNAME, hostname were not presented, but HOST was, at least on zsh. Tried checking if it was declared on the dash shell as well, it was not.
This means the variable HOST should/may be included in the options to look for the variable as well...
hostname=${HOST:-${HOSTNAME:-${hostname:-$(hostname || cat "/etc/hostname")}}}

The generic way of obtaining the hostname should be by reading the single-line-content-file located at /etc/hostname, as the hostname command's man page suggest.
So, if hostname fails cat "/etc/hostname" is used instead.

[dylanaraps]

Thanks!