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Top Forums Shell Programming and Scripting String formatting using awk printf Post 302411621 by sugan on Friday 9th of April 2010 03:37:49 AM
Old 04-09-2010
String formatting using awk printf

Hi Friends,
I am trying to insert lines of the below format in a file:
Code:
# x3a4914       Joe       2010/04/07
# seh          Lane       2010/04/07
# IN01379     Larry       2010/04/07

I am formatting the strings as follows using awk printf:
Code:
awk 'printf "# %s %9s %18s\n", $2,$3,$4}'

The above code does not work when the length of feild 1 varies.
Example, I get results as shown below:
Code:
# x3a4914       Joe       2010/04/07
# seh      Lane       2010/04/07
# IN01379     Larry       2010/04/07

Please let me know how to modify the prinf in awk to achieve this.

Thanks,
Sugan
 

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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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