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  1. #!/bin/bash
  2.  
  3. ip=199.166.20.111
  4. echo $ip | perl -e '$_=<>; exit 1 unless \
  5.   m/^(?!\.)(?:\.?(?:2[0-4]\d|25[0-5]|1?\d?\d)\b){4}$/ && \
  6.  !m/^(?:127\.0\.0\.1|10\.|172\.1[6-9]\.|172\.2[0-9]\.|172\.3[0-1]\.|192\.168\.)/'
  7.  
  8. if [[ $? == 1 ]]; then
  9. 	echo $ip no es una IP o es privada
  10. else
  11. 	echo $ip es una IP pública
  12. fi
  13.  
  14. ip=172.17.19.254
  15. echo $ip | perl -e '$_=<>; exit 1 unless \
  16.   m/^(?!\.)(?:\.?(?:2[0-4]\d|25[0-5]|1?\d?\d)\b){4}$/ && \
  17.  !m/^(?:127\.0\.0\.1|10\.|172\.1[6-9]\.|172\.2[0-9]\.|172\.3[0-1]\.|192\.168\.)/'
  18.  
  19. if [[ $? == 1 ]]; then
  20. 	echo $ip no es una IP o es privada
  21. else
  22. 	echo $ip es una IP pública
  23. fi
  24.  
Success #stdin #stdout 0s 19632KB
comments (?)
stdin 
Standard input is empty
stdout 
199.166.20.111 es una IP pública
172.17.19.254 es una IP pública
https://ideone.com/TvtV4N
language:
Bash (bash 5.0.3)
created:
6 years ago
visibility:
public

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