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Top Forums Shell Programming and Scripting SED replace string by occurrence Post 302172873 by sank on Wednesday 5th of March 2008 03:08:00 AM
Old 03-05-2008
Quote:
Originally Posted by uttamhoode
hi all,
I have a text file with following content

PAGENUMBER
asasasa
asasasa
PAGENUMBER
sasasasasa
PAGENUMBER

using sed i want to replace PAGENUMBER by occurrence count

eg

1
asasasa
asasasa
2
sasasasasa
3


Thanks and Regards,
uttam hoode
why not use awk, try this:
cat $filename | awk '/PAGENUMBER/{count++; { sub("PAGENUMBER",count, $0)}; }; {print }'

A part of this command is taken from a similar post by lyoncc, thanks to lyoncc.
 

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COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME
colrm -- remove columns from a file SYNOPSIS
colrm [start [stop]] DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read from the standard input. Output is written to the standard output. If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec- ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not zero. Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one. ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7). EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs. SEE ALSO
awk(1), column(1), cut(1), paste(1) HISTORY
The colrm command appeared in 3.0BSD. BSD
August 4, 2004 BSD
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