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  1. #!/bin/bash
  2. echo -e '192.168.1.1 foobar\nfoobar 11192.168.1.10000' | \
  3.  grep -E '\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}\b' # POSIX ERE
  4.  
Success #stdin #stdout 0s 19632KB
comments (?)
stdin 
Standard input is empty
stdout 
192.168.1.1 foobar
https://ideone.com/Tp0VUn
language:
Bash (bash 5.0.3)
created:
6 years ago
visibility:
secret

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