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  #1 (permalink)  
Old 12-26-2006
esham's Avatar
esham esham is offline
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formatting text
Hi,

I am having a file containing entries like:

.iso.org.dod.internet.mgmt.mib-2.system.sysName.0
.iso.org.dod.internet.mgmt.mib-2.system.sysLocation.0
.iso.org.dod.internet.mgmt.mib-2.system.sysServices.0
.iso.org.dod.internet.mgmt.mib-2.system.sysORLastChange.0
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifNumber.0
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifIndex.1
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifIndex.2
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifIndex.3
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.2
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.3
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.4
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifType.1
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifType.2
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifType.3



Here what the output must be like

.iso.org.dod.internet.mgmt.mib-2.system.sysName.0
.iso.org.dod.internet.mgmt.mib-2.system.sysLocation.0
.iso.org.dod.internet.mgmt.mib-2.system.sysServices.0
.iso.org.dod.internet.mgmt.mib-2.system.sysORLastChange.0
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifNumber.0
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifIndex.1
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifDescr.2
.iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifType.1

That means, if the last field of each line is defferent of that of the previous line, the dont print that line, otherwise print.

Please help me in doing this.

Thanks in advance
esham
  #2 (permalink)  
Old 12-26-2006
cskumar cskumar is offline
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Posts: 67
try this one
Assuming to print distinct values of last but one field.

awk -F "." '{arr[$(NF-1)]=$0 }END {for (i in arr) print arr[i]}' file
  #3 (permalink)  
Old 12-26-2006
esham's Avatar
esham esham is offline
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Join Date: Nov 2004
Location: INDIA
Posts: 107
yea, that worked. But that made the sequence in a problem. :-(
any other way
  #4 (permalink)  
Old 12-26-2006
cskumar cskumar is offline
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reason
Can u tell me why u want the seq no ?
  #5 (permalink)  
Old 12-26-2006
esham's Avatar
esham esham is offline
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I need to use the output as input for other function.
  #6 (permalink)  
Old 12-26-2006
cskumar cskumar is offline
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try this
sort -r -t"." -k8,8 esham.txt|awk -F "." '{arr[$(NF-1)]=$0 }END {for (i in arr) print arr[i]}'
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