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Calculate the sum of column

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$ cat sdc-3par |grep -iE "ifdb|esdb"|grep ESDB | grep -v bkp
    14 SDC-SAS-AIX-ESDB-raw-01 full NA    NA    base ---        14 RW normal                0   2918400   2918400
    15 SDC-SAS-AIX-ESDB-raw-02 full NA    NA    base ---        15 RW normal                0     40960     40960
    16 SDC-SAS-AIX-ESDB-raw-03 full NA    NA    base ---        16 RW normal                0     40960     40960
    17 SDC-SAS-AIX-ESDB-raw-04 full NA    NA    base ---        17 RW normal                0     40960     40960
    18 SDC-SSD-AIX-ESDB-raw-01 full NA    NA    base ---        18 RW normal                0    204800    204800
    19 SDC-SSD-AIX-ESDB-raw-02 full NA    NA    base ---        19 RW normal                0   1024000   1024000
    20 SDC-SSD-AIX-ESDB-raw-03 full NA    NA    base ---        20 RW normal                0     40960     40960
 46126 SDC-SSD-AIX-ESDB-raw-04 full NA    NA    base ---     46126 RW normal                0   1024000   1024000
103806 SDC-SSD-AIX-ESDB-raw-05 full NA    NA    base ---    103806 RW normal                0   2097152   2097152

$ cat sdc-3par |grep -iE "ifdb|esdb"|grep ESDB | grep -v bkp| awk '{print $12}' | paste -sd+ - | bc
7432192

$ cat sdc-3par |grep -iE "ifdb|esdb"|grep IFDB | grep -v bkp| awk '{print $12}' | paste -sd+ - | bc
11681792