Shell Programming and Scripting

#!/usr/bin/env bash

# @(#) s1	Demonstrate creation of a number of files.

pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C

FILE=${1-data1}
pl " Input data file $FILE:"
head $FILE

rm p* ; touch p0 
pl " Status before file creation:"
ls p*

pl " Make n copies:"
LIST=$( printf "p%02d.txt " {7..14})
tee $LIST < $FILE > /dev/null
pl " Status after   file creation:"
ls p*

SAMPLE=p08.txt
pl " Sample of created file, $SAMPLE:"
head $SAMPLE

exit 0

% ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian GNU/Linux 5.0.8 (lenny) 
bash GNU bash 3.2.39

-----
 Input data file data1:
Now is the time
for all good men
to come to the aid
of their country.

-----
 Status before file creation:
p0

-----
 Make n copies:

-----
 Status after   file creation:
p0  p07.txt  p08.txt  p09.txt  p10.txt	p11.txt  p12.txt  p13.txt  p14.txt

-----
 Sample of created file, p08.txt:
Now is the time
for all good men
to come to the aid
of their country.