- sqlplus -sl dbsnmp/Or8cle@"COL3:COL4/COL2"

$ cat aaa.log
aaa:fDb:a0081:1800:f1:dsds
aaa:iDb:a0081:1801:i1:dsds
aaa:pDb:a0081:1802:p1:dsds

sqlplus -sl dbsnmp/Or8cle@"a0081:1800/fDb"
sqlplus -sl dbsnmp/Or8cle@"a0081:1801/iDb"
sqlplus -sl dbsnmp/Or8cle@"a0081:1802/pDb"

$ cat aaa.log | cut -d":" -f2 > aaa_i.log
$ cat aaa_i.log
fDb
iDb
pDb

$ cat aaa.log | awk -F: '{print  $3  ":" $4}' > aaa_h_p.log
$ cat aaa_h_p.log
a0081:1800
a0081:1801
a0081:1802

sqlplus -sl dbsnmp/Or8cle@"a0081:1800/fDb"
sqlplus -sl dbsnmp/Or8cle@"a0081:1801/fDb"
sqlplus -sl dbsnmp/Or8cle@"a0081:1802/fDb"