o0-o

# net_if.sh

( # linux
  file /sys/class/net/* |
    sed 's/.*\///g' ||

  # macos
  networksetup -listallhardwareports |
    grep "Device:" |
    awk '{ print $2 }' ||

o0-o

# net_mac_addresses.sh

( # linux (NetworkManager)
  nmcli -terse -fields GENERAL.HWADDR device show ||
  
  # macos
  networksetup -listallhardwareports ||

  # linux/bsd
  ( ip address || ifconfig ) |

o0-o

# uuid.sh

uuidgen 2>/dev/null ||

exit 1 #fail

exit 0 #success

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# password.sh

declare -r length=$(($(($RANDOM%17))+23)) 2>/dev/null && #23-39

( #openssl
  openssl rand -base64 "${length-32}" ||
  
  #os random
  base64 < /dev/urandom |
    fold --width="${length-32}" | 

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# cpu_model.sh

( # linux (proc)
  grep "model name" /proc/cpuinfo | 
    uniq | 
    sed 's/[[:space:]]\{1,\}/ /g' | 
    sed 's/^model name : //' ||
    
  # linux (lscpu)
  lscpu | 

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# os.sh

( # linux
  grep ^ID= /etc/os-release |
  	sed 's/PRETTY_NAME=//' |
    sed 's/"//g' ||
    
  # macos
  system_profiler SPSoftwareDataType |
    grep "System Version: " |

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# user.sh

whoami 2>/dev/null ||

exit 1 #failure

exit 0 #success

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# users_loggedin.sh

w -h | 
  awk '{ print $1 }' 2>/dev/null ||
  
exit 1 #failure

exit 0 #success

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# cpu_arch.sh

uname -m |
  sed 's/amd64/x86_64/' || #x86_64 is the generic name for amd64
    
exit 1 #failure

exit 0 #success

#https://forums.fedoraforum.org/showthread.php?186239-x86_64-vs-amd64

o0-o

# net_nics.sh

set -o pipefail &&

( #macos
  system_profiler SPEthernetDataType | 
    grep "BSD name" -B 11 | #hardware NICs have BSD names (excludes virtual interaces and bridges)
    grep -v -E "Name|Type|Bus|ID|Sub|Link" | #remove lines we're not concerned with
    sed 's/BSD name://g' | #remove labels
    sed 's/://g' | #remove colons