Don't print lines where field#1 starts with contents of field#4

Don't print lines where field#1 starts with contents of field#4



Trying to exclude lines where field#1 starts with contents of field#4. Otherwise print line.



INPUT


f1|f2|f3|f4
Cheese Board|xx|xxx|Cheese
French Cheese|yy|yyy|Cheese



OUTPUT NEEDED


f1|f2|f3|f4
French Cheese|yy|yyy|Cheese



CODE TRIED (not working with carat^)


awk ‘ BEGIN "
if ( $1 !~ ^$4 ) print $0
‘ file




2 Answers
2


$ awk -F'|' 'index($1,$4)!=1' file
f1|f2|f3|f4
French Cheese|yy|yyy|Cheese



Could you please try following.


awk -F'[ |]' 'FNR==1print;next $1!=$NF' Input_file



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