#!/bin/bash
# Copyright (C) 2005 Krzysztof Kozlowski
#   License: GNU General Public License version 2
#            http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# version 2 as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# Ostatnia zmiana: 20.03.2006
#
# Generate random alfanumeric characters
#
#
#
# Function usage :
# random_text length
#
random_text () {
  if [ "$1" == "" ]; then
    _length=6
  else
    _length=$1
  fi
  i=0
  while [ $i -lt ${_length} ]
  do
    i=`expr $i + 1`
    abc="a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
x
y
z
0
1
2
3
4
5
6
7
8
9"
    litery=($abc)
    count=${#litery[*]}
    echo -n ${litery[$((RANDOM%count))]}
  done
  echo
}


# Example :
#random_text $1