Available GNU Info topics:

• autosprintf: (autosprintf). Support for printf format strings in C++.
• Bash: (bash). The GNU Bourne-Again SHell.
• cmp: (diff)Invoking cmp. Compare 2 files byte by byte.
  diff: (diff)Invoking diff. Compare 2 files line by line.
  diff3: (diff)Invoking diff3. Compare 3 files line by line.
  patch: (diff)Invoking patch. Apply a patch to a file. ...
• GDK: (gdk). The General Drawing Kit
• gettext: (gettext). GNU gettext utilities.
  autopoint: (gettext)autopoint Invocation. Copy gettext infrastructure.
  envsubst: (gettext)envsubst Invocation. Expand environment variables.
  gettextize: (gettext)gettextize Invocation. Prepare a package for gettext. ...
• GTK: (gtk). The GIMP Toolkit
• gzip: (gzip)Invoking gzip. Compress files.
• Heimdal: (heimdal). The Kerberos 5 distribution from KTH
• mysql: (mysql). MySQL documentation.