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Top Forums Shell Programming and Scripting Split: File into multiple and keeping the same 3 lines from input into all output files Post 302742123 by mrn6430 on Monday 10th of December 2012 03:03:08 PM
Old 12-10-2012
Wrench Split: File into multiple and keeping the same 3 lines from input into all output files

The following code will split the infile into multiple files. However, I need it to insert the same first 3 lines from the original input file into each splitted file. How do I modify my script below to do so:

Code:
print -n "Enter file name to split? " ; read infile
if [ -z "$infile" ]
then
echo "Invalid file name entered ..."
exit 255
fi
print -n "Enter Number of files to split it into? " ; read numf
if echo $numf | egrep -q '^[2-9]{1}$'; then
echo
else
echo "Invalid number <$numf> entered. Entry must be numeric and 1 digits in length and between 2 and 9 ..."
exit 255
fi
echo "Splitting file $infile into $numf files ....."
sleep 2
awk '{a[NR]=$0}END{for(i=1;i<=NR;i++)print a[i] > "'split.$infile.'" 1+int(n*((i-1)/NR))}' n=$numf $infile
echo "Done...."

 

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SHCOMP(1)						       Korn shell utilities							 SHCOMP(1)

NAME
shcomp - compile a shell script SYNOPSIS
shcomp [ options ] [infile [outfile]] DESCRIPTION
Unless -D is specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh can read and execute with the same effect as the original script. Since aliases are processed as the script is read, alias definitions whose value requires variable expansion will not work correctly. If -D is specified, all double quoted strings that are preceded by $ are output. These are the messages that need to be translated to locale specific versions for internationalization. If outfile is omitted, then the results will be written to standard output. If infile is also omitted, the shell script will be read from standard input. OPTIONS
[D dictionary] Generate a list of strings that need to be placed in a message catalog for internationalization. [n noexec] Displays warn- ing messages for obsolete or non-conforming constructs. [v verbose] Displays input from infile onto standard error as it reads it. EXIT STATUS
0 Successful completion. >0 An error occurred. SEE ALSO
ksh(1) IMPLEMENTATION
version shcomp (AT&T Research) 2003-03-02 author David Korn <dgk@research.att.com> copyright Copyright (c) 1982-2010 AT&T Intellectual Property license http://www.opensource.org/licenses/cpl1.0.txt 2003-03-02 SHCOMP(1)
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