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Top Forums Shell Programming and Scripting Split File Based on Line Number Pattern Post 302241851 by joeyg on Tuesday 30th of September 2008 12:43:48 PM
Old 09-30-2008
Tools I got a start on this

But, I will need some awk help (or to think a little clearer after eating lunch)

Code:
> cat big_file4
a stuff to 1 file
b stuff to 2 file
c stuff to 3 file
a stuff to 1 file
b stuff to 2 file
c stuff to 3 file
a stuff to 1 file
b stuff to 2 file
c stuff to 3 file
d stuff to 4 file
a stuff to 1 file
b stuff to 2 file
c stuff to 3 file
a stuff to 1 file
b stuff to 2 file
c stuff to 3 file
a stuff to 1 file
b stuff to 2 file
c stuff to 3 file
d stuff to 4 file

What I initially wrote does not capture the file line of text - and where I think I need some HELP!
Code:
> cat -n big_file4 | awk '{printf "%1s %-15s \n", substr($1,length($1),1), $2}'
1 a               
2 b               
3 c               
4 a               
5 b               
6 c               
7 a               
8 b               
9 c               
0 d               
1 a               
2 b               
3 c               
4 a               
5 b               
6 c               
7 a               
8 b               
9 c               
0 d

Because from here, my theory is that

Code:
grep "^[147] " <infile >outfile_a
grep "^[258] " <infile >outfile_b
grep "^[369] " <infile >outfile_c
grep "^[0] " <infile >outfile_d

May need to cut before writing to each output.
 

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SAFE_FINGER(8)						     Linux Programmer's Manual						    SAFE_FINGER(8)

NAME
safe_finger - finger client wrapper that protects against nasty stuff from finger servers SYNOPSIS
safe_finger [finger_options] DESCRIPTION
The safe_finger command protects against nasty stuff from finger servers. Use this program for automatic reverse finger probes from the tcp_wrapper (tcpd) , not the raw finger command. The safe_finger command makes sure that the finger client is not run with root privileges. It also runs the finger client with a defined PATH environment. safe_finger will also protect you from problems caused by the output of some finger servers. The problem: some programs may react to stuff in the first column. Other programs may get upset by thrash anywhere on a line. File systems may fill up as the finger server keeps sending data. Text editors may bomb out on extremely long lines. The finger server may take forever because it is somehow wedged. safe_finger takes care of all this badness. SEE ALSO
hosts_access(5), hosts_options(5), tcpd(8) AUTHOR
Wietse Venema, Eindhoven University of Technology, The Netherlands. Linux 21th June 1997 SAFE_FINGER(8)
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