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  1. #!/bin/bash
  2. s='AX-14233402__rs35404821
  3. AX-37499887__rs74704183
  4. AX-36783275__rs11997571'
  5. awk '{gsub(/AX.*_rs/,"rs")}1' <<< "$s"
Success #stdin #stdout 0.01s 5504KB
stdin
Standard input is empty
stdout
rs35404821
rs74704183
rs11997571