forestbaker

for clbg in {40..47} {100..107} 49 ; do
	#Foreground
	for clfg in {30..37} {90..97} 39 ; do
		#Formatting
		for attr in 0 1 2 4 5 7 ; do
			#Print the result
			echo -en "\e[${attr};${clbg};${clfg}m ^[${attr};${clbg};${clfg}m \e[0m"
		done
		echo #Newline
	done

forestbaker

for fgbg in 38 48 ; do #Foreground/Background
	for color in {0..256} ; do #Colors
		#Display the color
		echo -en "\e[${fgbg};5;${color}m ${color}\t\e[0m"
		#Display 10 colors per lines
		if [ $((($color + 1) % 10)) == 0 ] ; then
			echo #New line
		fi
	done
	echo #New line

forestbaker

# this will extract all extensions, usernames and passwords from the asterisk sip.conf file 
# Remove the -- from egrep to see the relation of username to pass
egrep -B2 'username=....' /etc/asterisk/sip.conf | egrep -v 'host|vmexten|--' | wc -l

forestbaker

The /etc/apache2/httpd.conf is empty in Ubuntu, because it is there for historic reasons
Apache2 user options should go into a new *.conf-file inside /etc/apache2/conf.d/
httpd.conf or apache2.conf may get overwritten during an update

To make sure the above works, check that /etc/apache2/apache2.conf contains the following lines:
Include conf.d/

In Apache 2.4+ the user configuration directory is /etc/apache2/conf-available/ 
Use a2enconf FILENAME_WITHOUT_SUFFIX to enable the new configuration file, or manually create a symlink in /etc/apache2/conf-enabled/