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  1. #!/bin/bash
  2. s='@ text1 text2 100'
  3. sed -E "/^\s*\@\s+text1\s+text2\s*/c\@\t\ttext1\ttext2\t1000" <<< "$s"
Success #stdin #stdout 0s 4820KB
stdin
Standard input is empty
stdout
@		text1	text2	1000