UNIX for Dummies Questions & Answers

awk -F^ '{ if ((($1 == "M") && ($5 == "2")) || (($1 == "S") && ($5 == "7"))) print $0}' welcome > welcome1

When I run the above awk command, I could see the same content of welcome in welcome1.

Later, I found that the logicals "&&", "||" used in the above command is not working.

Can any intelligent awk'ers suggest a better method of using logicals in the above command.

Thanks in advance.

For me it is perfectly working:


imac ~ # cat inp
S^it^201^INF^Gur^Del
M^it^201^FCS^2^Wew
F^it^201^FCS^Gur^Del
S^it^201^COG^7^Dda

imac ~ # awk -F^ '{ if ((($1 == "M") && ($5 == "2")) || (($1 == "S") && ($5 == "7"))) print $0}' inp
M^it^201^FCS^2^Wew
S^it^201^COG^7^Dd

No issues at all... Please check your input file.

Can you try working of this below command.

awk -F^ '{ if ((($1 != "M") && ($5 != "2")) || (($1 != "S") && ($5 != "7"))) print $0}' welcome > welcome1