Password Generator for the console

.bash_profile

################
# Password Gen #
################
# Source: http://blog.colovirt.com/2009/01/07/linux-generating-strong-passwords-using-randomurandom/
# Use: `pwgen` or pwgen 20 oder pwgen 20 10
pwgen() {
	# Length of password
	if [ -z "$1" ]
	then
		length=10
	else
		length=$1
	fi

	# Number of passwords
	if [ -z "$2" ]
	then
		limit=4
	else
		limit=$2
	fi

	# fix "tr: Illegal byte sequence" error
	export LC_ALL=C

	# Generate the password, check also that an additional character exists
	cat /dev/urandom | tr -dc 'a-zA-Z0-9-_!@#$%^&*()_+{}|:<>?=' | fold -w $length | head -n $limit | grep -i '[!@#$%^&*()_+{}|:<>?=]'
}