Newsgroup: it.comp.os.linux.ubuntu
Titolo: g++ non viene installato

Ho Ubuntu 11.10 amd64.
 
gcc funziona, ma quando provo ad utilizzare g++, compare il messaggio 
che g++ si trova in g++ o in pentium-builder.
 
Facendo "sudo apt-get install g++" compare un lungo elenco di cose con 
la scritta che sono già aggiornate, senza che g++ venga installato.
 
Il pacchetto pentium-builder, invece non viene trovato.
 
Come installo g++?
 
Grazie
Cristiano

 Come installo g++?
 
Questo lo sai già: 
 
$ sudo apt-get install g++
-- 
Bye, Lem
Ceterum censeo ISLAM esse delendum
_________________________________________________________________
Non sprecare i cicli idle della tua CPU, né quelli della tua GPU.
 
http://www.worldcommunitygrid.org/index.jsp
 
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http://www.gpugrid.net/
 

 i comandi che dai e l'output che producono.
 
root@ubuntu:~# g++
The program 'g++' can be found in the following packages:
  * g++
  * pentium-builder
Try: apt-get install <selected package>
 
quindi scrivo (credo che l'output non sia completo):
 
root@ubuntu:~# sudo apt-get install g++
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'xserver-xorg-input-vmmouse' for regex 'g+'
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Note, selecting 'libwebkitgtk-3.0-0' for regex 'g+'
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Note, selecting 'cli-uno-bridge' for regex 'g+'
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Note, selecting 'gstreamer0.10-fluendo-mp3' for regex 'g+'
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Note, selecting 'python-ubuntuone-storageprotocol' for regex 'g+'
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Note, selecting 'libgtksourceview-3.0-0' for regex 'g+'
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Note, selecting 'libgvnc-1.0-0' for regex 'g+'
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Note, selecting 'ibus-gtk' for regex 'g+'
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Note, selecting 'language-selector-gnome' for regex 'g+'
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Note, selecting 'ttf-thai-tlwg' for regex 'g+'
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Note, selecting 'gnome-power-manager' for regex 'g+'
Note, selecting 'openoffice.org-hyphenation' instead of 
'openoffice.org-hyphenation-sk'
Note, selecting 'openoffice.org-hyphenation' instead of 
'openoffice.org-hyphenation-sv'
Note, selecting 'openoffice.org-hyphenation' instead of 
'openoffice.org-hyphenation-uk'
Note, selecting 'python-gst0.10' instead of 'python2.6-gst0.10'
Note, selecting 'python-gst0.10' instead of 'python2.7-gst0.10'
Note, selecting 'gksu' instead of 'gnome-sudo'
Note, selecting 'rsyslog' instead of 'system-log-daemon'
Note, selecting 'ghostscript' instead of 'gs-common'
Note, selecting 'lightdm' instead of 'x-display-manager'
Note, selecting 'python-ubuntuone-storageprotocol' instead of 
'python2.6-ubuntuone-storageprotocol'
Note, selecting 'python-ubuntuone-storageprotocol' instead of 
'python2.7-ubuntuone-storageprotocol'
Note, selecting 'linux-image-3.0.0-12-generic' instead of 'linux-image'
Note, selecting 'linux-image-3.0.0-12-generic' instead of 'linux-image-3.0'
Note, selecting 'perl' instead of 'libdigest-md5-perl'
Note, selecting 'perl' instead of 'libsys-syslog-perl'
Note, selecting 'python-imaging' instead of 'python2.6-imaging'
Note, selecting 'python-imaging' instead of 'python2.7-imaging'
Note, selecting 'guile-1.8-libs' instead of 'guile-1.8-slib'
Note, selecting 'firefox' instead of 'gnome-www-browser'
Note, selecting 'libc6' instead of 'glibc-2.13-1'
Note, selecting 'gstreamer0.10-plugins-good' instead of 
'gstreamer0.10-visualization'
Note, selecting 'rsyslog' instead of 'linux-kernel-log-daemon'
Note, selecting 'pulseaudio' instead of 
'pulseaudio-module-rygel-media-server'
Note, selecting 'libgphoto2-port0' instead of 'libgphoto2port'
xserver-xorg-input-vmmouse is already the newest version.
libgwibber-gtk2 is already the newest version.
libgtkspell0 is already the newest version.
python-pkg-resources is already the newest version.
linux-headers-3.0.0-12-generic is already the newest version.
ubuntuone-control-panel-gtk is already the newest version.
empathy-common is already the newest version.
libgpod-common is already the newest version.
libgssdp-1.0-2 is already the newest version.
libjson-glib-1.0-0 is already the newest version.
compiz-plugins-main-default is already the newest version.
gnome-screenshot is already the newest version.
libgnomekbd7 is already the newest version.
gtk2-engines-murrine is already the newest version.
ibus-gtk3 is already the newest version.
libgtk-3-common is already the newest version.
libpolkit-gobject-1-0 is already the newest version.
unity-greeter is already the newest version.
libgl1-mesa-dri is already the newest version.
gvfs-bin is already the newest version.
libavahi-ui-gtk3-0 is already the newest version.
openprinting-ppds is already the newest version.
libisccfg62 is already the newest version.
gir1.2-gconf-2.0 is already the newest version.
gnome-terminal is already the newest version.
gdb is already the newest version.
gstreamer0.10-plugins-base-apps is already the newest version.
login is already the newest version.
gpgv is already the newest version.
libgnome-control-center1 is already the newest version.
gnome-user-guide is already the newest version.
gettext-base is already the newest version.
compiz-plugins-default is already the newest version.
libgamin0 is already the newest version.
libpango-perl is already the newest version.
libgstfarsight0.10-0 is already the newest version.
libgdbm3 is already the newest version.
libgcrypt11 is already the newest version.
xserver-xorg-video-sis is already the newest version.
eog is already the newest version.
gnome-search-tool is already the newest version.
libwebkitgtk-1.0-0 is already the newest version.
gnome-system-monitor is already the newest version.
libgtop2-common is already the newest version.
libgcr-3-1 is already the newest version.
libgtk2.0-cil is already the newest version.
libgd2-xpm is already the newest version.
libcurl3-gnutls is already the newest version.
gnome-settings-daemon is already the newest version.
fontconfig is already the newest version.
libsoup-gnome2.4-1 is already the newest version.
libjpeg62 is already the newest version.
gstreamer0.10-nice is already the newest version.
language-pack-en is already the newest version.
libgeoip1 is already the newest version.
libgtksourceview-3.0-0 is already the newest version.
libgvnc-1.0-0 is already the newest version.
ibus-gtk is already the newest version.
libqtgui4 is already the newest version.
libgssapi-krb5-2 is already the newest version.
ubuntu-extras-keyring is already the newest version.
libindicator-messages-status-provider1 is already the newest version.
libpam0g is already the newest version.
libgpg-error0 is already the newest version.
libdbusmenu-glib4 is already the newest version.
gir1.2-atspi-2.0 is already the newest version.
perl-modules is already the newest version.
gedit-common is already the newest version.
libwebkitgtk-3.0-common is already the newest version.
mono-gac is already the newest version.
system-config-printer-gnome is already the newest version.
libtelepathy-logger2 is already the newest version.
firefox-globalmenu is already the newest version.
liblaunchpad-integration-common is already the newest version.
libgpod4 is already the newest version.
libgail-3-0 is already the newest version.
xdg-user-dirs-gtk is already the newest version.
libgudev-1.0-0 is already the newest version.
libgtksourceview-3.0-common is already the newest version.
apport-gtk is already the newest version.
intel-gpu-tools is already the newest version.
libcanberra-gtk-module is already the newest version.
gnome-system-log is already the newest version.
libmono-system-configuration4.0-cil is already the newest version.
python-egenix-mxtools is already the newest version.
libgweather-3-0 is already the newest version.
gir1.2-soup-2.4 is already the newest version.
libdbus-glib1.0-cil is already the newest version.
language-selector-gnome is already the newest version.
ttf-thai-tlwg is already the newest version.
python-gnupginterface is already the newest version.
modemmanager is already the newest version.
libglib2.0-data is already the newest version.
libgdk-pixbuf2.0-0 is already the newest version.
xorg is already the newest version.
libtelepathy-glib0 is already the newest version.
python-egenix-mxdatetime is already the newest version.
libgrip0 is already the newest version.
language-pack-gnome-en-base is already the newest version.
zeitgeist-core is already the newest version.
branding-ubuntu is already the newest version.
apg is already the newest version.
thunderbird-globalmenu is already the newest version.
gnome-icon-theme-symbolic is already the newest version.
policykit-desktop-privileges is already the newest version.
sgml-base is already the newest version.
gamin is already the newest version.
gir1.2-totem-plparser-1.0 is already the newest version.
libdbus-glib-1-2 is already the newest version.
gir1.2-totem-1.0 is already the newest version.
manpages-dev is already the newest version.
telepathy-gabble is already the newest version.
grub-common is already the newest version.
gedit is already the newest version.
libgif4 is already the newest version.
gir1.2-dbusmenu-gtk-0.4 is already the newest version.
pulseaudio-module-gconf is already the newest version.
xserver-xorg-core is already the newest version.
libgdata13 is already the newest version.
glib-networking is already the newest version.
libgupnp-igd-1.0-3 is already the newest version.
libmagic1 is already the newest version.
libgoa-1.0-0 is already the newest version.
xserver-xorg-video-openchrome is already the newest version.
ntfs-3g is already the newest version.
libpulse-mainloop-glib0 is already the newest version.
libwebkitgtk-3.0-0 is already the newest version.
libgdu-gtk0 is already the newest version.
xserver-xorg-video-vmware is already the newest version.
libavahi-glib1 is already the newest version.
python is already the newest version.
libfontconfig1 is already the newest version.
xserver-xorg-input-wacom is already the newest version.
grub-pc-bin is already the newest version.
ssh-askpass-gnome is already the newest version.
libxxf86dga1 is already the newest version.
gnome-accessibility-themes is already the newest version.
libgconf2-4 is already the newest version.
libogg0 is already the newest version.
xserver-xorg-video-radeon is already the newest version.
geoclue is already the newest version.
libsgutils2-2 is already the newest version.
gvfs-backends is already the newest version.
libqt4-svg is already the newest version.
libgtop2-7 is already the newest version.
xserver-xorg-video-qxl is already the newest version.
gnome-control-center-data is already the newest version.
xserver-xorg-video-savage is already the newest version.
xserver-xorg-video-fbdev is already the newest version.
libapt-pkg4.11 is already the newest version.
software-center is already the newest version.
zeitgeist is already the newest version.
gnome-nettool is already the newest version.
libgstreamer-plugins-base0.10-0 is already the newest version.
libgtk2.0-0 is already the newest version.
gwibber-service-facebook is already the newest version.
libpolkit-agent-1-0 is already the newest version.
libtag1-vanilla is already the newest version.
xserver-xorg-input-evdev is already the newest version.
libgnomevfs2-common is already the newest version.
gconf2-common is already the newest version.
gir1.2-gnomebluetooth-1.0 is already the newest version.
ttf-takao-pgothic is already the newest version.
gir1.2-atk-1.0 is already the newest version.
gnome-keyring is already the newest version.
gcc-4.6 is already the newest version.
python-gdbm is already the newest version.
gir1.2-webkit-3.0 is already the newest version.
python-aptdaemon.gtk3widgets is already the newest version.
vinagre is already the newest version.
zeitgeist-extension-fts is already the newest version.
geoclue-ubuntu-geoip is already the newest version.
libwebkitgtk-1.0-common is already the newest version.
zlib1g is already the newest version.
gnome-sudoku is already the newest version.
libindicate-gtk3 is already the newest version.
xserver-xorg is already the newest version.
libcanberra-gtk3-module is already the newest version.
gnome-font-viewer is already the newest version.
libglu1-mesa is already the newest version.
gsfonts is already the newest version.
libgconf2.0-cil is already the newest version.
xserver-xorg-video-all is already the newest version.
gir1.2-indicate-0.6 is already the newest version.
update-manager-core is already the newest version.
libqtgconf1 is already the newest version.
gir1.2-gmenu-3.0 is already the newest version.
python2.7 is already the newest version.
network-manager-pptp is already the newest version.
manpages is already the newest version.
policykit-1-gnome is already the newest version.
pppconfig is already the newest version.
libgcc1 is already the newest version.
gnome-games-common is already the newest version.
libmono-addins-gui0.2-cil is already the newest version.
gtk3-engines-unico is already the newest version.
bluez-gstreamer is already the newest version.
gbrainy is already the newest version.
libneon27-gnutls is already the newest version.
libgirepository-1.0-1 is already the newest version.
libreoffice-gnome is already the newest version.
libgpgme11 is already the newest version.
libgail-3-common is already the newest version.
gnome-session-canberra is already the newest version.
libgwibber2 is already the newest version.
system-config-printer-udev is already the newest version.
libasound2-plugins is already the newest version.
gtk2-engines is already the newest version.
libcairo-gobject2 is already the newest version.
libmission-control-plugins0 is already the newest version.
libgtk-3-0 is already the newest version.
libcanberra-gtk3-0 is already the newest version.
libgdata-common is already the newest version.
xserver-xorg-input-synaptics is already the newest version.
xserver-xorg-video-vesa is already the newest version.
libgksu2-0 is already the newest version.
python-gobject-cairo is already the newest version.
lockfile-progs is already the newest version.
gnome-menus is already the newest version.
libglib-perl is already the newest version.
logrotate is already the newest version.
plymouth-theme-ubuntu-logo is already the newest version.
python-keyring is already the newest version.
gnome-session-common is already the newest version.
gnome-media is already the newest version.
liblaunchpad-integration1.0-cil is already the newest version.
libpam-gnome-keyring is already the newest version.
libgnome2-common is already the newest version.
libgudev1.0-cil is already the newest version.
ubuntuone-client-gnome is already the newest version.
gnome-control-center is already the newest version.
gsettings-desktop-schemas is already the newest version.
libgdiplus is already the newest version.
gcalctool is already the newest version.
libgtk-sharp-beans-cil is already the newest version.
libpango1.0-0 is already the newest version.
libreoffice-emailmerge is already the newest version.
libgdu0 is already the newest version.
cups-driver-gutenprint is already the newest version.
xserver-xorg-video-sisusb is already the newest version.
genisoimage is already the newest version.
gs-cjk-resource is already the newest version.
gnome-icon-theme is already the newest version.
libupower-glib1 is already the newest version.
libgtk2.0-common is already the newest version.
xserver-xorg-video-tdfx is already the newest version.
libglapi-mesa is already the newest version.
python-gobject-2 is already the newest version.
libgnome-menu2 is already the newest version.
dictionaries-common is already the newest version.
libgs9 is already the newest version.
gnome-session is already the newest version.
libgmime2.4-cil is already the newest version.
gir1.2-pango-1.0 is already the newest version.
telepathy-logger is already the newest version.
wget is already the newest version.
libgl1-mesa-glx is already the newest version.
libutouch-geis1 is already the newest version.
transmission-gtk is already the newest version.
libdbusmenu-gtk3-4 is already the newest version.
libgexiv2-0 is already the newest version.
libgnome-menu-3-0 is already the newest version.
libqt4-opengl is already the newest version.
libgtkspell3-0 is already the newest version.
librsvg2-2 is already the newest version.
language-pack-en-base is already the newest version.
libnm-gtk-common is already the newest version.
gnome-orca is already the newest version.
libgtk2-perl is already the newest version.
gnome-bluetooth is already the newest version.
groff-base is already the newest version.
libpoppler-glib6 is already the newest version.
thunderbird-gnome-support is already the newest version.
gnupg is already the newest version.
xserver-xorg-video-cirrus is already the newest version.
libgail18 is already the newest version.
gir1.2-notify-0.7 is already the newest version.
libgutenprint2 is already the newest version.
xserver-xorg-video-r128 is already the newest version.
xdg-utils is already the newest version.
unattended-upgrades is already the newest version.
libgs9-common is already the newest version.
mono-4.0-gac is already the newest version.
checkbox-gtk is already the newest version.
grep is already the newest version.
libavahi-gobject0 is already the newest version.
ghostscript-x is already the newest version.
gnome-codec-install is already the newest version.
linux-image-generic is already the newest version.
libxdamage1 is already the newest version.
keyboard-configuration is already the newest version.
xserver-xorg-video-neomagic is already the newest version.
sgml-data is already the newest version.
python-aptdaemon.gtkwidgets is already the newest version.
libmng1 is already the newest version.
libgnomekbd-common is already the newest version.
gwibber-service-identica is already the newest version.
python-farsight is already the newest version.
libgnome-media-profiles-3.0-0 is already the newest version.
python-gnomekeyring is already the newest version.
geoip-database is already the newest version.
foomatic-db-engine is already the newest version.
libjpeg8 is already the newest version.
librsvg2-common is already the newest version.
libcompizconfig0 is already the newest version.
xdg-user-dirs is already the newest version.
libgstreamer0.10-0 is already the newest version.
gnome-disk-utility is already the newest version.
gir1.2-gtksource-3.0 is already the newest version.
libslang2 is already the newest version.
libgeoclue0 is already the newest version.
libgck-1-0 is already the newest version.
gucharmap is already the newest version.
liblightdm-gobject-1-0 is already the newest version.
libgweather-common is already the newest version.
libgail-common is already the newest version.
xserver-xorg-video-nouveau is already the newest version.
gwibber is already the newest version.
libgnomevfs2-0 is already the newest version.
xfonts-encodings is already the newest version.
libgtk-3-bin is already the newest version.
gnome-terminal-data is already the newest version.
grub-gfxpayload-lists is already the newest version.
jockey-gtk is already the newest version.
libgmime-2.4-2 is already the newest version.
libpangomm-1.4-1 is already the newest version.
python-gtk2 is already the newest version.
e2fsprogs is already the newest version.
libpaper1 is already the newest version.
python-gobject is already the newest version.
libsigc++-2.0-0c2a is already the newest version.
libnm-gtk0 is already the newest version.
gvfs is already the newest version.
libglib2.0-bin is already the newest version.
libglibmm-2.4-1c2a is already the newest version.
gnomine is already the newest version.
libgnutls26 is already the newest version.
xserver-xorg-video-mga is already the newest version.
libgpm2 is already the newest version.
gnome-utils-common is already the newest version.
gzip is already the newest version.
dpkg is already the newest version.
grub-pc is already the newest version.
pkg-config is already the newest version.
gnome-mahjongg is already the newest version.
appmenu-gtk is already the newest version.
gir1.2-launchpad-integration-3.0 is already the newest version.
ginn is already the newest version.
firefox-gnome-support is already the newest version.
liblocale-gettext-perl is already the newest version.
launchpad-integration is already the newest version.
ubuntu-keyring is already the newest version.
openoffice.org-hyphenation is already the newest version.
libcanberra-gtk0 is already the newest version.
gir1.2-freedesktop is already the newest version.
python-gst0.10 is already the newest version.
gksu is already the newest version.
gstreamer0.10-pulseaudio is already the newest version.
gnome-online-accounts is already the newest version.
libcap-ng0 is already the newest version.
gir1.2-wnck-3.0 is already the newest version.
totem-plugins is already the newest version.
gnome-user-share is already the newest version.
gir1.2-glib-2.0 is already the newest version.
gcc is already the newest version.
gnome-desktop-data is already the newest version.
ghostscript is already the newest version.
python-xdg is already the newest version.
xserver-xorg-video-s3 is already the newest version.
lightdm is already the newest version.
appmenu-gtk3 is already the newest version.
iputils-ping is already the newest version.
python-ubuntuone-storageprotocol is already the newest version.
gir1.2-gtk-2.0 is already the newest version.
xserver-xorg-video-trident is already the newest version.
python-aptdaemon-gtk is already the newest version.
libwmf0.2-7-gtk is already the newest version.
linux-image-3.0.0-12-generic is already the newest version.
xserver-xorg-video-intel is already the newest version.
perl is already the newest version.
indicator-messages is already the newest version.
system-config-printer-common is already the newest version.
xserver-xorg-video-mach64 is already the newest version.
libnm-glib4 is already the newest version.
network-manager is already the newest version.
libtaglib2.0-cil is already the newest version.
libcupscgi1 is already the newest version.
libgtkmm-3.0-1 is already the newest version.
gwibber-service-twitter is already the newest version.
gnome-desktop3-data is already the newest version.
language-pack-gnome-en is already the newest version.
libzeitgeist-1.0-1 is already the newest version.
gnome-screensaver is already the newest version.
libtag1c2a is already the newest version.
libjbig2dec0 is already the newest version.
libgphoto2-2 is already the newest version.
gstreamer0.10-gconf is already the newest version.
libutouch-grail1 is already the newest version.
python-imaging is already the newest version.
libgupnp-1.0-3 is already the newest version.
libgdata1.7-cil is already the newest version.
gconf2 is already the newest version.
guile-1.8-libs is already the newest version.
gstreamer0.10-plugins-base is already the newest version.
libgphoto2-l10n is already the newest version.
libdbusmenu-gtk4 is already the newest version.
libgnome-keyring0 is already the newest version.
xserver-xorg-input-all is already the newest version.
network-manager-pptp-gnome is already the newest version.
fontconfig-config is already the newest version.
libwpg-0.2-2 is already the newest version.
libgkeyfile1.0-cil is already the newest version.
dconf-gsettings-backend is already the newest version.
gir1.2-gdkpixbuf-2.0 is already the newest version.
linux-generic is already the newest version.
xserver-xorg-input-mouse is already the newest version.
libgtk-vnc-2.0-0 is already the newest version.
light-themes is already the newest version.
libgtk2.0-bin is already the newest version.
firefox is already the newest version.
libreoffice-gtk is already the newest version.
linux-headers-generic is already the newest version.
liblaunchpad-integration-3.0-1 is already the newest version.
gcc-4.6-base is already the newest version.
libglewmx1.5 is already the newest version.
libc6 is already the newest version.
rastertosag-gdi is already the newest version.
libglib2.0-cil is already the newest version.
language-selector-common is already the newest version.
ghostscript-cups is already the newest version.
gir1.2-dbusmenu-glib-0.4 is already the newest version.
compizconfig-backend-gconf is already the newest version.
grub2-common is already the newest version.
zeitgeist-datahub is already the newest version.
gstreamer0.10-plugins-good is already the newest version.
libnm-glib-vpn1 is already the newest version.
libpng12-0 is already the newest version.
gir1.2-gtk-3.0 is already the newest version.
gwibber-service is already the newest version.
compiz-gnome is already the newest version.
libgee2 is already the newest version.
libgmp10 is already the newest version.
gir1.2-vte-2.90 is already the newest version.
xdiagnose is already the newest version.
update-manager is already the newest version.
gstreamer0.10-x is already the newest version.
libgucharmap-2-90-7 is already the newest version.
rsyslog is already the newest version.
libglew1.5 is already the newest version.
powermgmt-base is already the newest version.
gir1.2-unity-4.0 is already the newest version.
network-manager-gnome is already the newest version.
libvisual-0.4-plugins is already the newest version.
libtelepathy-farsight0 is already the newest version.
iputils-arping is already the newest version.
pulseaudio is already the newest version.
gvfs-fuse is already the newest version.
xorg-docs-core is already the newest version.
libgnome-bluetooth8 is already the newest version.
xserver-xorg-video-ati is already the newest version.
xserver-xorg-video-siliconmotion is already the newest version.
gir1.2-appindicator3-0.1 is already the newest version.
gstreamer0.10-alsa is already the newest version.
python-gconf is already the newest version.
gstreamer0.10-tools is already the newest version.
gir1.2-dee-0.5 is already the newest version.
libgphoto2-port0 is already the newest version.
libglib2.0-0 is already the newest version.
gir1.2-peas-1.0 is already the newest version.
python-configglue is already the newest version.
gnome-session-bin is already the newest version.
libgomp1 is already the newest version.
usb-creator-gtk is already the newest version.
libgnome-desktop-3-2 is already the newest version.
software-properties-gtk is already the newest version.
libcupsimage2 is already the newest version.
growisofs is already the newest version.
libmono-system-drawing4.0-cil is already the newest version.
liblaunchpad-integration1 is already the newest version.
gnome-power-manager is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
 
Cristiano

 Note, selecting 'xserver-xorg-input-vmmouse' for regex 'g+'
 
Qui i problemi sono due:
 
1) non viene trovato nei repo il pacchetto g++;
 
2) tu digiti g++, il pacchetto g++ non vien trovato e allora apt-get 
prova coll'espressione regolare g+, quindi cerca tutti i pacchetti che la 
soddisfacciano.
 
Al momento sono un po' in confusione, ma AFAIK non dovrebbe accadere, 
perché con apt-get:
 
If no package matches the given expression
AND
the expression contains one of '.', '?' or '*' then it is assumed to be a 
POSIX regular expression, and it is applied to all package names in the
database. Any matches are then installed (or removed).
 
Ma g++ non contiene né . né * né ?.
 
Però accade: a me capita provando, per esempio, col pacchetto davvero 
inesistente stacippa++:
 
lem@biggy:~$ sudo apt-get -s install stacippa++
Lettura elenco dei pacchetti... Fatto
Generazione albero delle dipendenze       
Lettura informazioni sullo stato... Fatto
E: Impossibile trovare il pacchetto stacippa+
E: Impossibile trovare alcun pacchetto tramite l'espressione regolare 
"stacippa+"
 
Il che è doppiamente grave, perché pare che stacippa++ non venga 
addirittura mai cercato, e si cerchi solo prima letteralmente stacippa+ e 
poi le corripondenze colla regex stacippa+.
 
Eppure g++ vien trovato normalmente (mah!), quindi se risolviamo il 
problema della mancanza di g++ nei tuoi repository siamo comunque a 
cavallo. 
 
Prima prova un:
 
# apt-get update
 
poi magari posta il risultato del comando:
 
cat /etc/apt/sources.list | grep -v ^#
 
così si capisce quali diavolo di repository stai usando, che non hanno 
dentro g++. Con ogni probabilità ne avrai disabilitato qualcuno, e dovrai 
riabilitarlo.


 riabilitarlo.
 
Volontariamente non ho disabilitato niente.
 
root@ubuntu:~# cat /etc/apt/sources.list | grep -v ^#
 
deb 
http://it.archive.ubuntu.com/ubuntu/
 oneiric main restricted
deb-src 
http://it.archive.ubuntu.com/ubuntu/
 oneiric main restricted
 
deb 
http://it.archive.ubuntu.com/ubuntu/
 oneiric-updates main restricted
deb-src 
http://it.archive.ubuntu.com/ubuntu/
 oneiric-updates main restricted
 
deb 
http://it.archive.ubuntu.com/ubuntu/
 oneiric universe
deb-src 
http://it.archive.ubuntu.com/ubuntu/
 oneiric universe
deb 
http://it.archive.ubuntu.com/ubuntu/
 oneiric-updates universe
deb-src 
http://it.archive.ubuntu.com/ubuntu/
 oneiric-updates universe
 
deb 
http://it.archive.ubuntu.com/ubuntu/
 oneiric multiverse
deb-src 
http://it.archive.ubuntu.com/ubuntu/
 oneiric multiverse
deb 
http://it.archive.ubuntu.com/ubuntu/
 oneiric-updates multiverse
deb-src 
http://it.archive.ubuntu.com/ubuntu/
 oneiric-updates multiverse
 
deb 
http://it.archive.ubuntu.com/ubuntu/
 oneiric-backports main 
restricted universe multiverse
deb-src 
http://it.archive.ubuntu.com/ubuntu/
 oneiric-backports main 
restricted universe multiverse
 
deb 
http://security.ubuntu.com/ubuntu
 oneiric-security main restricted
deb-src 
http://security.ubuntu.com/ubuntu
 oneiric-security main restricted
deb 
http://security.ubuntu.com/ubuntu
 oneiric-security universe
deb-src 
http://security.ubuntu.com/ubuntu
 oneiric-security universe
deb 
http://security.ubuntu.com/ubuntu
 oneiric-security multiverse
deb-src 
http://security.ubuntu.com/ubuntu
 oneiric-security multiverse
 
Cristiano

 Volontariamente non ho disabilitato niente.
 
Comunque, mistero risolto: se potessi connetterti, apt-get funzionerebbe.
 
Ci sarebbero altre soluzioni, ma prima vediamo se la chiavetta è davvero 
inusabile.


 Comunque, mistero risolto: se potessi connetterti, apt-get funzionerebbe.
 
Ho fatto l'update come mi hai detto e poi ha funzionato tutto.
 
Grazie
Cristiano