shellfetch

shellfetch.sh

#!/bin/bash
# Set the variables to get distro name, distro id, etc
source /etc/os-release
packages=0

# Use the package manager to get amount of installed packages
if [ -x "$(command -v apk)" ];
then
  (( packages=packages+$(apk list --installed | wc -l) ))
elif [ -x "$(command -v apt)" ]; then
  (( packages=packages+$(apt list --installed | wc -l) ))
elif [ -x "$(command -v dnf)" ]; then
  (( packages=packages+$(dnf list --installed | grep -c -v '^Installed Packages$') ))
elif [ -x "$(command -v pacman)" ]; then
  (( packages=packages+$(pacman -Q | wc -l) ))
elif [ -x "$(command -v zypper)" ]; then
  (( packages=packages+$(zypper search -i| wc -l) ))
elif [ -x "$(command -v emerge)" ]; then
  (( packages=packages+$(find /var/db/pkg/* | wc -l) ))
elif [ -x "$(command -v nix-store)" ]; then
  (( packages=packages+$(nix-store -q --references /var/run/current-system/sw | cut -d'-' -f2- | wc -l) ))
else
  echo "wtf no package manager?!"; exit 1
fi

# Set variables
read -r version <  /sys/devices/virtual/dmi/id/product_version
read -r name <  /sys/devices/virtual/dmi/id/product_name 
read -r mobovendor < /sys/devices/virtual/dmi/id/board_vendor
read -r mobo < /sys/devices/virtual/dmi/id/board_name
host="$mobovendor $name $version $mobo"
{
	set -f
	set +f -- $host
	host=
}
for word do
  case $word in
    (To      | [Bb]e      | [Ff]illed | [Bb]y  | O.E.M.  | OEM  |\
     Not     | Applicable | Specified | System | Product | Name |\
     Version | Undefined  | Default   | string | INVALID | �    | os |\
     Type1ProductConfigId )
       continue
     ;;
  esac
  host="$host$word "
done
# it works so dont toucc
gpu=$(lspci -mm | awk -F '\"|\" \"|\\(' \ '/"Display|"3D|"VGA/ {a[$0] = $1 " " $3 " " ($(NF-1) ~ /^$|^Device [[:xdigit:]]+$/ ? $4 : $(NF-1))} END { for (i in a) { if (!seen[a[i]]++) { sub("^[^ ]+ ", "", a[i]);print a[i]}}}')
user_hostname="$(whoami) on $HOSTNAME"
cpumodel=$(lscpu | grep "Model name" | cut -c 34-)
kernel=$(uname -r)
uptime=$(uptime | awk '{print $3, $4}' | cut -b 1-5)
ram_used=$(free -m | grep Mem | awk -O '{print $3}')
ram_free=$(free -m | grep Mem | awk -O '{print $2}')
diskcmd=$(mount | grep '^/dev/')
disks=$(while read -r line; do df -h $(echo $line | awk '{print $3}') | grep '/' ; done <<< $diskcmd)
disk_size=$(df -h / | grep "/dev" | awk '{print $2}')
[[ -n "$COLOR" ]] || COLOR="\e[36m"

# Print everything
echo -e "$COLOR"
figlet "$NAME"
echo "host: $host"
echo "user: $user_hostname"
echo "distro: $PRETTY_NAME"
echo "kernel: $kernel"
echo "architecture: $(uname -m)"
echo "packages: $packages"
echo "cpu: $cpumodel"
[[ $(echo "$gpu" | wc -l) -gt 1 ]] && while read -r line; do echo "gpu: ${line}"; done <<< "$gpu" || echo "gpu:$gpu"
echo "shell: $SHELL"
echo "uptime: $uptime"
echo "ram usage: ${ram_used}MB/${ram_free}MB"
while read -r line
do
  disk_used=$(echo "$line" | awk '{print $3}')
  disk_size=$(echo "$line" | awk '{print $2}')
  disk=$(echo "$line" | awk '{print $6}')
  echo "disk $disk usage: $disk_used/$disk_size"
done <<< "$disks"
echo -e "\e[0m"

On odd machines, dmi doesn't exist (e.g. raspi). Either suppressing the error message using 2>/dev/null before each < or the following stops any error message:

if [ -d "/sys/devices/virtual/dmi" ];
then
  read -r version <  /sys/devices/virtual/dmi/id/product_version
  read -r name <  /sys/devices/virtual/dmi/id/product_name 
  read -r mobovendor < /sys/devices/virtual/dmi/id/board_vendor
  read -r mobo < /sys/devices/virtual/dmi/id/board_name
  host="$mobovendor $name $version $mobo"
fi