在ubuntu主线版本下的/var/cache/apt/archives文件夹说明-系统清理

/*********************************************************************
 * Author  : Samson
 * Date    : 03/01/2014
 * Test platform:
 *              Linux ubuntu 3.2.0-58-generic-pae
 *              GNU bash, version 4.2.39
 * *******************************************************************/

/var/cache/apt/archives文件夹中的文件是使用sudo apt-get install appname时下载的安装文件，这些文件是可以清理的，若你系统空间不足的时候，可以想到从此处进行清理而获得空间。在我的PC下的文件有，如下：

 /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

清理的方法很简单：

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

再次查看的时候，*.deb文件都不存在了

 /var/cache/apt/archives $ /var/cache/apt/archives$ ll
total 28
drwxr-xr-x 3 root root 20480  2月 28 20:04 ./
drwxr-xr-x 3 root root  4096  2月 28 20:04 ../
-rw-r----- 1 root root     0  1月 15 06:54 lock
drwxr-xr-x 2 root root  4096  2月 28 19:45 partial/