To find the total file size of all mksysb file alone in a particular Directory

server2:/nim/mksysb # du -sg * |grep mksysb
4.31    servermksysb1
3.66    servermksysb2
4.25    servermksysb3
3.07    servermksysb4
3.46    servermksysb5
4.51    servermksysb6
3.03    servermksysb7
2.88    servermksysb8
3.14    servermksysb9
2.76    servermksysb10
3.45    servermksysb11
2.63    servermksysb12
3.83    servermksysb13
7.47    servermksysb14
4.83    servermksysb15
4.78    servermksysb16
7.33    servermksysb17
4.26    servermksysb18
3.15    servermksysb19
8.35    servermksysb20
7.44    servermksysb21
1.27    servermksysb22


server2:/nim/mksysb # du -sg * |grep mksysb | awk '{print $1}'
4.31
3.66
4.25
3.07
3.46
4.51
3.03
2.88
3.14
2.76
3.45
2.63
3.83
7.47
4.83
4.78
7.33
4.26
3.15
8.35
7.44
1.27




server2:/nim/mksysb # du -sg * |grep mksysb | awk '{print $1}'| awk '{total=total+$1}END{print total}'
93.86



93.86 is the total file size of all mksysb files...