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Top Forums Shell Programming and Scripting subtitute specific column in line Post 302228581 by redoubtable on Monday 25th of August 2008 05:35:22 AM
Old 08-25-2008
echo "aaaa;aaaaa;aaa ;aaaa;aaa;aa ;aa"|awk -F ";" '{$2="bbbbbbbb"; printf "%s;%s;%s;%s;%s\n", $1,$2,$3,$4,$5}'

awk -F sets the delimiter for columns and then each column is represented by $1 $2 $3 $4 $5. Change them as you see fit.
 

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srec_cosmac(5)							File Formats Manual						    srec_cosmac(5)

NAME
srec_cosmac - RCA Cosmac Elf file format DESCRIPTION
This file takes the form of one or more RCA Cosmac Elf monitor commands, also known as the IDIOT/4 monitor. Only the change memory command (!M) is allowed. The general form of the !M command takes the form !Maaaa dd ... dd The !M command writes data byte bytes (represented by character pairs dd) into successive memory locations, started at address aaaa. Spa- ces between data bytes are ignored. Using the comma (,) line continuation character resumes from the next address in sequence. !Maaaa dd ... dd, dd ... dd Using the semicolon (;) line continuation character takes an address on the next line !Maaaa dd ... dd; aaaa dd ... dd It is also possible to have the semicolon immediately after the command. !M; aaaa dd ... dd All of these forms may be used in combination. Size Multiplier In general, binary data will expand in size by approximately 2.0 times when represented with this format. EXAMPLE
Here is an example Cosmac file. It contains the data "Hello, World[rq] to be loaded at address 0x1000. !M1000 48656C6C6F2C20576F726C640A COPYRIGHT
srec_cat version 1.58 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Peter Miller The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use the 'srec_cat -VERSion License' command. This is free software and you are welcome to redistribute it under certain conditions; for details use the 'srec_cat -VERSion License' command. AUTHOR
Peter Miller E-Mail: pmiller@opensource.org.au //* WWW: http://miller.emu.id.au/pmiller/ Reference Manual SRecord srec_cosmac(5)
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