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Top Forums Shell Programming and Scripting Replace a value of Nth field of nth row Post 302910501 by deepakwins on Thursday 24th of July 2014 11:21:56 PM
Old 07-25-2014
Replace a value of Nth field of nth row

Using Awk, how can I achieve the following?

I have set of record numbers, for which, I have to replace the nth field with some values, say spaces.

Eg:
Set of Records : 4,9,10,55,89,etc
I have to change the 8th field of all the above set of records to spaces (10 spaces).
Its a delimited file.

Thanks in advance.
 

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usync(8)						      System Manager's Manual							  usync(8)

NAME
usync - synchronize two setld inventory files to reflect current system status SYNOPSIS
/usr/lbin/usync [-d] file1 file2 OPTIONS
Enables debugging. This will print the pairs of pathnames being synchronized on the standard output. DESCRIPTION
The usync command is used to achieve inventory synchronization by merging two inventory files according to the pathname field of the inven- tory records. The result is directed to standard output. If the two inventory files contain records with the same pathname, the record in file2 is written and the record in file1 is ignored. If either inventory file contains a pathname not present in the other file, the record containing that pathname is written to standard output. To reflect the current system inventory, file2 should represent a later installation than file1. RESTRICTIONS
The two inventory files must be sorted in ascending ASCII sequence on the pathname field. ERRORS
usync: file is corrupt Explanation: Records in one of the inventory files are not sorted properly. EXAMPLES
The following command produces a synchronized inventory for two versions of the OATDCB subset: /usr/lbin/usync OATDCB100.inv OATDCB120.inv FILES
Subset inventory files SEE ALSO
stl_inv(4) Programming Support Tools usync(8)
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