如何向awk中传递shell变量参数

第一种方法：采用单引号加双引号的方式，如'"$i"'

for i in $(<$TMP_FILE); do
            awk -F "'" '/'"$i"'/{
                if($2 ~ /\<'"$i"'\>/)
                print "  ",$2,"  ",$4,"  ",$6
            }' $UPLOAD_FILE
    else
            echo "server $i not in the file."
done

第二种方法：变量传递

for i in $(<$TMP_FILE); do
            awk -F "'" '/'"$i"'/{
                if($2 == sername)
                print "  ",$2,"  ",$4,"  ",$6
            }' sername=$i $UPLOAD_FILE
    else
            echo "server $i not in the file."
done