Надоело, мне значит придумывать имена хоста

#!/usr/bin/env bash
set -eo pipefail

default_hostname() {
  pc_type=`[ -d /sys/module/battery ] && echo laptop || echo desktop`
  random_chars=`cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 6 | head -n1`
  echo "${pc_type}-${random_chars}"
}

if [[ $EUID -ne 0 ]]; then
  echo "Please run as root" >&2
  exit 1
fi

new_hostname="${1:-`default_hostname`}"
old_hostname=`hostnamectl hostname`

if [ "$new_hostname" = "$old_hostname" ]; then
  echo "Same hostname" >&2
  exit 1
fi

hostnamectl hostname "$new_hostname"

if grep -q 127.0.1.1 /etc/hosts; then
  sed -ir 's/127\.0\.1\.1.*/127.0.1.1 '"$new_hostname"'/g' /etc/hosts
else
  echo "127.0.1.1 $new_hostname" >> /etc/hosts
fi

# демон, который позволяет найти машину в локальной сети по имени хоста
systemctl restart avahi-daemon

echo "Hostname changed: $old_hostname -> $new_hostname"

~ 
➜ sudo set-hostname.sh
Hostname changed: laptop-i3OP39 -> laptop-RYBuKi

~ 
➜ sudo set-hostname.sh
Hostname changed: laptop-RYBuKi -> laptop-TWsYug

~ 
➜ sudo set-hostname.sh
Hostname changed: laptop-TWsYug -> laptop-Aw5d56

~
➜ sudo set-hostname.sh acer-laptop   
Hostname changed: laptop-Aw5d56 -> acer-laptop

~ 
➜ cat /etc/hosts           
127.0.0.1 localhost
127.0.1.1 acer-laptop

~ took 2s 
➜ vi ~/bin/set-hostname.sh    
_IceTransSocketUNIXConnect: Cannot connect to non-local host sergeym
_IceTransSocketUNIXConnect: Cannot connect to non-local host sergeym