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Full Discussion: Splitting multiple files in a folder
Top Forums UNIX for Dummies Questions & Answers Splitting multiple files in a folder Post 302576902 by jim mcnamara on Sunday 27th of November 2011 11:22:34 AM
Old 11-27-2011
I think you really want the csplit command:

Code:
cd /path/to/files
for fname in *.fas
do
   csplit $fname /nnnnn/
done

There are options for setting the names of your output files, play around with those - see the csplit man page.
This User Gave Thanks to jim mcnamara For This Post:
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LEARN ABOUT REDHAT

csplit

CSPLIT(1)								FSF								 CSPLIT(1)

NAME

       csplit - split a file into sections determined by context lines

SYNOPSIS

       csplit [OPTION]... FILE PATTERN...

DESCRIPTION

       Output pieces of FILE separated by PATTERN(s) to files `xx01', `xx02', ..., and output byte counts of each piece to standard output.

       Mandatory arguments to long options are mandatory for short options too.

       -b, --suffix-format=FORMAT use sprintf FORMAT instead of %d

       -f, --prefix=PREFIX
	      use PREFIX instead of `xx'

       -k, --keep-files
	      do not remove output files on errors

       -n, --digits=DIGITS
	      use specified number of digits instead of 2

       -s, --quiet, --silent
	      do not print counts of output file sizes

       -z, --elide-empty-files
	      remove empty output files

       --help display this help and exit

       --version
	      output version information and exit

       Read standard input if FILE is -.  Each PATTERN may be:

       INTEGER
	      copy up to but not including specified line number

       /REGEXP/[OFFSET]
	      copy up to but not including a matching line

       %REGEXP%[OFFSET]
	      skip to, but not including a matching line

       {INTEGER}
	      repeat the previous pattern specified number of times

       {*}    repeat the previous pattern as many times as possible

       A line OFFSET is a required `+' or `-' followed by a positive integer.

AUTHOR

       Written by Stuart Kemp and David MacKenzie.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The full documentation for csplit is maintained as a Texinfo manual.  If the info and csplit programs are properly installed at your  site,
       the command

	      info csplit

       should give you access to the complete manual.

csplit (coreutils) 4.5.3					   February 2003							 CSPLIT(1)
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