Hi,

PLMN=APPLE
awk ' /is missing/ { flag=1;print > "fruit_output_m1.txt" }
END {
if( flag != 1 )
print "No $PLMN in the store." > "fruit_output_n1.txt"
} ' fruit_result.txt

The output is:

No $PLMN in the store.

Should be:

No APPLE in the store.


Please help!!

The variable is not substitued by the shell because the texte is between simple quotes.

A possible solution :

PLMN=APPLE
awk -v  "
    /is missing/ { 
        flag=1;print > \"fruit_output_m1.txt\" 
    }
    END {
        if( flag != 1 )
            print \"No $PLMN in the store.\" > \"fruit_output_n1.txt\"
    } 
     " fruit_result.txt

PLMN=APPLE
awk -v PLMN="$PLMN" '
    /is missing/ { 
        flag=1;print > "fruit_output_m1.txt" 
    }
    END {
        if( flag != 1 )
        print "No", PLMN, "in the store." > "fruit_output_n1.txt"
    } 
     ' fruit_result.txt