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A.r. Naresh
Asked: 2018-08-14 01:54:25 +0800 CST

how to use gsub function awk to replace characters with empty value

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for example my value alpha_1_2_u_345_cd.csv then i want to remove the characters present in using gsub in awk output should be 12345,alpha_1_2_u_345_cd.csv please let me know if there any evaluation to be done

Please find the execution below

enter image description here

awk

1 Answers

  1. Posted by @manatwork

    {sub(/r.*/,"",$2); gsub(/[^[:digit:]]/,"",$2); print $2"|"$3"|"$4"|"$5}.

    Or the gensub() way: 

    {print gensub(/[^[:digit:]]/,"","g",gensub(/r.*/,"",1,$2))"|"$3"|"$4"|"$5}
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