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  1. cat << EOF | awk '{mm=substr($4, 1, 4); cnt[$3 " " mm]++} END{for (a in cnt) print a " " cnt[a]}' 
  2. Line 3: 0606 221241  successfully copied to **
  3. Line 5: 0606 221242  successfully copied to **
  4. Line 7: 0606 221242  successfully copied to **
  5. Line 9: 0606 221342  successfully copied to **
  6. EOF
Success #stdin #stdout 0.02s 5264KB
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stdin
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Standard input is empty
stdout
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0606 2212 3
0606 2213 1
https://ideone.com/w2h64d
language:
Bash (bash 5.0.3)
created:
12 years ago
visibility:
public

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