fork(2) download
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  1. prev{print prev,$0} {prev=$0}
Success #stdin #stdout 0s 4488KB
comments (?)
stdin
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a
b
c
stdout
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a b
b c
https://ideone.com/6BGYTy
language:
AWK (gawk 4.2.1)
created:
5 years ago
visibility:
secret

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