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Top Forums UNIX for Dummies Questions & Answers How do I replace a string in file that is in a certain position with spaces? Post 302969865 by RudiC on Tuesday 29th of March 2016 11:59:19 AM
Old 03-29-2016
Didn't you want to insert 10 spaces? Above just puts in a single space...
And, above is safe only if the 10 chars are unique. You need to be sure there's no false positives in the cahrs 1 - 25!
If your awk version allows for empts field separators, try
Code:
awk  '{for (i=26; i<=35; i++) $i = " "} 1' FS="" OFS="" file
512256734618F198451213732          15402      315138010001103001

 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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