/var/cache/apt/archives folder description under the Ubuntu Main version: System cleanup

The files in the/var/cache/apt/archives folder are the installation files that are downloaded when you use the sudo apt-get install appname, which can be cleaned up and, if your system is out of space, you can think of cleaning up from here and getting space. The files under my PC are as follows:

/var/cache/apt/archives $ ls

Acct_6.5.5-1ubuntu4_amd64.deb Libnss3-tools_2%3a3.15.4-0ubuntu0.13.10.1_amd64.deb

Aptdaemon_1.1.1-0ubuntu4_all.deb Libntrack0_016-1.1_amd64.deb

Aptdaemon-data_1.1.1-0ubuntu4_all.deb Libntrack-qt4-1_016-1.1_amd64.deb

At-spi2-core_2.10.1-0ubuntu0.1_amd64.deb Libodbc1_2.2.14p2-5ubuntu4_i386.deb

Avahi-autoipd_0.6.31-2ubuntu4.1_amd64.deb Libogg0_1.3.1-1_i386.deb

Avahi-daemon_0.6.31-2ubuntu4.1_amd64.deb Libopenal1_1%3a1.14-4ubuntu1_i386.deb

Avahi-utils_0.6.31-2ubuntu4.1_amd64.deb Libopencc1_0.4.0-1_amd64.deb

Bind9-host_1%3a9.9.3.dfsg.p2-4ubuntu1.1_amd64.deb Liborc-0.4-0_1%3a0.4.17-2_i386.deb

Bluez-alsa_4.101-0ubuntu8b1_i386.deb Libotf0_0.9.13-1_amd64.deb

Cpp-4.8_4.8.1-10ubuntu9_amd64.deb Libp11-kit0_0.18.3-2ubuntu1_i386.deb

Cups_1.7.0~rc1-0ubuntu5.1_amd64.deb Libpam0g_1.1.3-8ubuntu3_i386.deb

Cups_1.7.0~rc1-0ubuntu5.2_amd64.deb Libpam-gnome-keyring_3.8.2-0ubuntu3.1_amd64.deb

Cups-bsd_1.7.0~rc1-0ubuntu5.1_amd64.deb Libpam-winbind_2%3a3.6.18-1ubuntu3.1_i386.deb

Cups-bsd_1.7.0~rc1-0ubuntu5.2_amd64.deb Libpango-1.0-0_1.32.5-5ubuntu1_i386.deb

Cups-client_1.7.0~rc1-0ubuntu5.1_amd64.deb Libpango1.0-0_1.32.5-5ubuntu1_i386.deb

Cups-client_1.7.0~rc1-0ubuntu5.2_amd64.deb Libpangocairo-1.0-0_1.32.5-5ubuntu1_i386.deb

Cups-common_1.7.0~rc1-0ubuntu5.1_all.deb Libpangoft2-1.0-0_1.32.5-5ubuntu1_i386.deb

Cups-common_1.7.0~rc1-0ubuntu5.2_all.deb Libpangox-1.0-0_0.0.2-4_i386.deb

Cups-daemon_1.7.0~rc1-0ubuntu5.1_amd64.deb Libpangoxft-1.0-0_1.32.5-5ubuntu1_i386.deb

Cups-daemon_1.7.0~rc1-0ubuntu5.2_amd64.deb Libpciaccess0_0.13.2-1_i386.deb

Cups-ppdc_1.7.0~rc1-0ubuntu5.2_amd64.deb Libpcre3_1%3a8.31-2_i386.deb

Cups-server-common_1.7.0~rc1-0ubuntu5.1_all.deb Libphonon4_4%3a4.7.0really4.6.0-0ubuntu2_amd64.deb

Cups-server-common_1.7.0~rc1-0ubuntu5.2_all.deb Libpinyin2_0.8.0-2_amd64.deb

Desktop-file-utils_0.21-1ubuntu3_amd64.deb Libpixman-1-0_0.30.2-1ubuntu0.1_amd64.deb

Dnsutils_1%3a9.9.3.dfsg.p2-4ubuntu1.1_amd64.deb Libpixman-1-0_0.30.2-1ubuntu0.1_i386.deb

Docbook-xsl_1.78.1+dfsg-1_all.deb Libplasma3_4%3a4.11.3-0ubuntu0.1_amd64.deb

Duplicity_0.6.21-0ubuntu4.1_amd64.deb Libplasma3_4%3a4.11.5-0ubuntu0.1_amd64.deb

Enigmail_2%3a1.5.2-0ubuntu1_amd64.deb Libpng12-0_1.2.49-4ubuntu1_i386.deb

Eog_3.8.2-1ubuntu1.1_amd64.deb Libpolkit-qt-1-1_0.103.0-1ubuntu1_amd64.deb

Esound-common_0.2.41-11_all.deb Libpoppler-qt4-4_0.24.1-0ubuntu1_amd64.deb

Espeak-data_1.47.11-1ubuntu0.1_amd64.deb Libpostproc52_6%3a0.8.10-0ubuntu0.13.10.1_amd64.deb

Fbterm_1.7-2_amd64.deb Libprocps0_1%3a3.3.3-2ubuntu9_amd64.deb

Fcitx_1%3a4.2.8.1-3_all.deb Libproxy1_0.4.11-0ubuntu4_i386.deb

Fcitx-anthy_0.2.0-1_amd64.deb Libpulse0_1%3a4.0-0ubuntu6_i386.deb

Fcitx-bin_1%3a4.2.8.1-3_amd64.deb Libpulsedsp_1%3a4.0-0ubuntu6_i386.deb

Fcitx-chewing_0.2.1-1_amd64.deb Libpulse-mainloop-glib0_1%3a4.0-0ubuntu6_i386.deb

Fcitx-config-common_0.4.7-1_all.deb Libpurple0_1%3a2.10.7-0ubuntu4.1.13.10.1_amd64.deb

Fcitx-config-gtk_0.4.7-1_amd64.deb Libpurple-bin_1%3a2.10.7-0ubuntu4.1.13.10.1_all.deb

Fcitx-config-gtk2_0.4.7-1_amd64.deb Libqapt2_2.0.65-0ubuntu1_amd64.deb

Fcitx-data_1%3a4.2.8.1-3_all.deb Libqapt2-runtime_2.0.65-0ubuntu1_amd64.deb

Fcitx-dbg_1%3a4.2.8.1-3_amd64.deb Libqca2_2.0.3-4_amd64.deb

Fcitx-frontend-all_1%3a4.2.8.1-3_all.deb Libqt4-dbus_4%3a4.8.4+dfsg-0ubuntu18.1_amd64.deb

Fcitx-frontend-fbterm_0.2.0-2_amd64.deb Libqt4-dbus_4%3a4.8.4+dfsg-0ubuntu18.1_i386.deb

Fcitx-frontend-gtk2_1%3a4.2.8.1-3_amd64.deb Libqt4-declarative_4%3a4.8.4+dfsg-0ubuntu18.1_amd64.deb

Fcitx-frontend-gtk3_1%3a4.2.8.1-3_amd64.deb Libqt4-declarative_4%3a4.8.4+dfsg-0ubuntu18.1_i386.deb

Fcitx-frontend-qt4_1%3a4.2.8.1-3_amd64.deb Libqt4-designer_4%3a4.8.4+dfsg-0ubuntu18.1_amd64.deb

Fcitx-frontend-qt5_0.1.1-1_amd64.deb Libqt4-designer_4%3a4.8.4+dfsg-0ubuntu18.1_i386.deb

Fcitx-googlepinyin_0.1.6-1_amd64.deb Libqt4-help_4%3a4.8.4+dfsg-0ubuntu18.1_amd64.deb

Fcitx-hangul_0.3.0-1_amd64.deb Libqt4-network_4%3a4.8.4+dfsg-0ubuntu18.1_amd64.deb

The cleaning method is simple:

/var/cache/apt/archives $ sudo apt-get clean

The *.deb file does not exist when you view it again.

/var/cache/apt/archives $/var/cache/apt/archives$ LL

Total 28

Drwxr-xr-x 3 root 20480 February 28 20:04./

Drwxr-xr-x 3 root 4096 February 28 20:04. /

-rw-r-----1 Root 0 January 06:54 lock

Drwxr-xr-x 2 root root 4096 February 19:45 partial/

This column more highlights: http://www.bianceng.cnhttp://www.bianceng.cn/OS/Linux/