程序对话框字体显示方块

root@shen-VirtualBox:/var/cache/apt/archives# ls
awesome_3.4.5-1_i386.deb libxcb-shape0_1.6-1_i386.deb
libev3_1%3a3.9-1_i386.deb libxcb-xinerama0_1.6-1_i386.deb
libgif4_4.1.6-9_i386.deb libxcb-xtest0_1.6-1_i386.deb
libid3tag0_0.15.1b-10build2_i386.deb libxdg-basedir1_1.0.2-1_i386.deb
libimlib2_1.4.2-8_i386.deb lock
libxcb-icccm1_0.3.6-1build1_i386.deb menu_2.1.44ubuntu1_i386.deb
libxcb-image0_0.3.6-1build1_i386.deb partial
libxcb-keysyms1_0.3.6-1build1_i386.deb rlwrap_0.37-1_i386.deb
libxcb-property1_0.3.6-1build1_i386.deb sl_3.03-16_i386.deb
libxcb-randr0_1.6-1_i386.deb terminator
libxcb-render-util0_0.3.6-1build1_i386.deb


上面是当前目录的文件

可是执行命令结果却不同

root@shen-VirtualBox:/var/cache/apt/archives# ls terminator\ /
libkeybinder0_0.2.2-2_i386.deb terminator_0.95-0ubuntu1_all.deb
python-keybinder_0.2.2-2_i386.deb

下面的却不对？
root@shen-VirtualBox:/var/cache/apt/archives# ls terminator
ls: 无法访问 terminator: 没有那个文件或目录


可是我执行

root@shen-VirtualBox:/var/cache/apt/archives# ls partial/
docbook-xsl_1.75.2+dfsg-5_all.deb
openjdk-6-jre-headless_6b20-1.9.9-0ubuntu1~10.10.2_i386.deb
openoffice.org-writer_1%3a3.2.1-7ubuntu1.1_i386.deb

和

root@shen-VirtualBox:/var/cache/apt/archives# ls partial
docbook-xsl_1.75.2+dfsg-5_all.deb
openjdk-6-jre-headless_6b20-1.9.9-0ubuntu1~10.10.2_i386.deb
openoffice.org-writer_1%3a3.2.1-7ubuntu1.1_i386.deb


的结果却是相同的，

ls terminator\ /
和
ls terminator
的结果为什么不同呢？
(terminator partial都是目录)



root@shen-VirtualBox:/var/cache/apt/archives# ls partial/ \
>


为什么出现>呢