sed one-liners to deal with .ini / .conf files

ini.sed

#
#   Get all sections from .INI file
#
sed -n 's/^[ \t]*\[\(.*\)\].*/\1/p' /etc/samba/smb.conf
# 
#   Get all values of given section in a clean key=value form
#
section=global; sed -n '/^[ \t]*\['"$section"'\]/,/^[ \]t*\[/s/^[ \t]*\([^;#\[][^ \t]*\)[ \t]*=[ \t]*\(.*\)/\1=\2/p' /etc/samba/smb.conf 
#
#   Get a specific value for a given key and section
#
section=global; key=workgroup; sed -n '/^[ \t]*\['"$section"'\]/,/^[ \]t*\[/s/^[ \t]*'"$key"'[ \t]*=[ \t]*\(.*\)/\1/p' /etc/samba/smb.conf