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Top Forums Shell Programming and Scripting Using sed to insert text file at first line Post 302508613 by psve on Monday 28th of March 2011 02:05:38 PM
Old 03-28-2011
insert file.txt to muliple files

Actually, I wanted to find a batch script that applies this insert 'file.txt' to all .c files in the current directory. So, in that case awk might be the best solution I guess:
Code:
find . -name "*.c" - exec awk 'NR==1{system("cat file.txt")}1' {} >{} \;

however, this command will wipe out all the contents in all .c files.
How do I further improve this script?

Thx.

Last edited by Scott; 03-28-2011 at 03:06 PM.. Reason: Code tags, please...
 

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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). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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