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Jan 22nd, 2019
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  1. $ cat delete1
  2. KEEPALIVED-MIB.txt: virtualServerRateCps Gauge32,
  3. KEEPALIVED-MIB.txt: SYNTAX INTEGER { tcp(1), udp(2) }
  4. KEEPALIVED-MIB.txt:virtualServerRateCps OBJECT-TYPE
  5. KEEPALIVED-MIB.txt: realServerRateCps Gauge32,
  6. KEEPALIVED-MIB.txt:realServerRateCps OBJECT-TYPE
  7. KEEPALIVED-MIB.txt: virtualServerRateCps,
  8. KEEPALIVED-MIB.txt: realServerRateCps,
  9. MF-Diameter-MIB.txt: tcp(1),
  10.  
  11. $ grep -i 'cpu' delete1
  12.  
  13. $ grep -i 'cpu*' delete1
  14. KEEPALIVED-MIB.txt: virtualServerRateCps Gauge32,
  15. KEEPALIVED-MIB.txt: SYNTAX INTEGER { tcp(1), udp(2) }
  16. KEEPALIVED-MIB.txt:virtualServerRateCps OBJECT-TYPE
  17. KEEPALIVED-MIB.txt: realServerRateCps Gauge32,
  18. KEEPALIVED-MIB.txt:realServerRateCps OBJECT-TYPE
  19. KEEPALIVED-MIB.txt: virtualServerRateCps,
  20. KEEPALIVED-MIB.txt: realServerRateCps,
  21. MF-Diameter-MIB.txt: tcp(1),
  22.  
  23. a* ---> a{0,} ---> Match a or aa or aaaaa or an empty string
  24.  
  25. $ cat delete
  26. cpu1
  27. cpu2
  28. cpu
  29. cp
  30.  
  31. $ grep -i 'cpu' delete
  32. cpu1
  33. cpu2
  34. cpu
  35.  
  36. $ grep -i 'cpu*' delete
  37. cpu1
  38. cpu2
  39. cpu
  40. cp
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