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  1. #!/bin/bash
  2. s="system.switch_cpus_1.commit.refs              2682887                       # Number of memory references committee"
  3. echo "$s" | grep -Ewo '[0-9]+'
  4. echo "-------------"
  5. echo "$s" | grep -Eo '\b[0-9]+\b'
  6. echo "-------------"
  7. echo "$s" | grep -Eo '\<[0-9]+\>'
Success #stdin #stdout 0s 4536KB
comments (?)
stdin 
Standard input is empty
stdout 
2682887
-------------
2682887
-------------
2682887
https://ideone.com/2R75dH
language:
Bash (bash 5.0.3)
created:
7 years ago
visibility:
secret

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