汗,我的系统是这样!!!

ldd: /usr/lib64/java: not regular file
ldd: /usr/lib64/jdbc-2.0: not regular file
ldd: /usr/lib64/jdbc-3.0: not regular file
ldd: /usr/lib64/jdbc-4.0: not regular file
ldd: /usr/lib64/jena: not regular file
ldd: /usr/lib64/jni: not regular file
ldd: /usr/lib64/jove: not regular file
ldd: /usr/lib64/jre1.6.0_27: not regular file
ldd: /usr/lib64/jvm: not regular file
ldd: /usr/lib64/kconf_update_bin: not regular file
ldd: /usr/lib64/kde4: not regular file
ldd: /usr/lib64/ldscripts: not regular file
ldd: /usr/lib64/lftp: not regular file
ldd: /usr/lib64/libglade: not regular file
ldd: /usr/lib64/libgphoto2: not regular file
ldd: /usr/lib64/libgphoto2_port: not regular file
ldd: /usr/lib64/libmcrypt: not regular file
libperl.so => not found
libperl.so => not found
libperl.so => not found
ldd: /usr/lib64/libpala: not regular file
ldd: /usr/lib64/libsearchclient: not regular file
libqscintilla2.so.8 => not found
libqscintilla2.so.8 => not found
libqscintilla2.so.8 => not found
ldd: /usr/lib64/libstreamanalyzer: not regular file
ldd: /usr/lib64/libstreams: not regular file
ldd: /usr/lib64/libv4l: not regular file
ldd: /usr/lib64/libvisual-0.4: not regular file
ldd: /usr/lib64/libxslt-plugins: not regular file
ldd: /usr/lib64/locale: not regular file
ldd: /usr/lib64/lxc: not regular file
ldd: /usr/lib64/lynx: not regular file
ldd: /usr/lib64/m17n: not regular file
ldd: /usr/lib64/mcabber: not regular file
ldd: /usr/lib64/mcs: not regular file
ldd: /usr/lib64/moc: not regular file
ldd: /usr/lib64/modules: not regular file
ldd: /usr/lib64/mozilla: not regular file
ldd: /usr/lib64/mpg123: not regular file
ldd: /usr/lib64/mysql: not regular file
ldd: /usr/lib64/nn: not regular file
ldd: /usr/lib64/nss_info: not regular file
ldd: /usr/lib64/oprofile: not regular file
ldd: /usr/lib64/p2c: not regular file
ldd: /usr/lib64/pango: not regular file
ldd: /usr/lib64/pdb: not regular file
ldd: /usr/lib64/perfcount: not regular file
ldd: /usr/lib64/perl5: not regular file
ldd: /usr/lib64/php: not regular file
ldd: /usr/lib64/pidgin: not regular file
ldd: /usr/lib64/pkgconfig: not regular file
ldd: /usr/lib64/pm-utils: not regular file
ldd: /usr/lib64/polkit-1: not regular file
ldd: /usr/lib64/pppd: not regular file
ldd: /usr/lib64/ppr: not regular file
ldd: /usr/lib64/proftpd: not regular file
ldd: /usr/lib64/purple-2: not regular file
ldd: /usr/lib64/pygtk: not regular file
ldd: /usr/lib64/python2.6: not regular file
ldd: /usr/lib64/qt: not regular file
ldd: /usr/lib64/qt-4.8.1: not regular file
ldd: /usr/lib64/redland: not regular file
ldd: /usr/lib64/rpc: not regular file
ldd: /usr/lib64/ruby: not regular file
ldd: /usr/lib64/sa: not regular file
ldd: /usr/lib64/sane: not regular file
ldd: /usr/lib64/sasl2: not regular file
ldd: /usr/lib64/sc: not regular file
ldd: /usr/lib64/seamonkey: not regular file
ldd: /usr/lib64/seamonkey-2.9.1: not regular file
ldd: /usr/lib64/security: not regular file
ldd: /usr/lib64/sesame: not regular file
ldd: /usr/lib64/slang: not regular file
ldd: /usr/lib64/smokegen: not regular file
ldd: /usr/lib64/soprano: not regular file
ldd: /usr/lib64/sox: not regular file
ldd: /usr/lib64/strigi: not regular file
ldd: /usr/lib64/stunnel: not regular file
ldd: /usr/lib64/tc: not regular file
ldd: /usr/lib64/tcl8.5: not regular file
ldd: /usr/lib64/terminfo: not regular file
ldd: /usr/lib64/thunarx-1: not regular file
ldd: /usr/lib64/thunderbird-12.0.1: not regular file
ldd: /usr/lib64/utempter: not regular file
ldd: /usr/lib64/vfs: not regular file
ldd: /usr/lib64/virtuoso: not regular file
ldd: /usr/lib64/vte-0.0: not regular file
ldd: /usr/lib64/wvWare: not regular file
ldd: /usr/lib64/xchat: not regular file
ldd: /usr/lib64/xfce4: not regular file
ldd: /usr/lib64/xine: not regular file
ldd: /usr/lib64/xmms: not regular file
ldd: /usr/lib64/xorg: not regular file
ldd: /usr/lib64/yp: not regular file
ldd: /usr/lib64/zsh: not regular file
bash-4.2#


怎么办呀我

因为那些文件是目录文件，ldd因此报错。
可以这样。
find /usr/lib -maxdepth 1 -type f -exec ldd '{}' + |grep "not found"

man find命令可查阅程序find的文档。

没错，普通文件及文件夹可以忽略。

5楼可以，
因为库文件基本文件名都带 .so 这几个字符，所以也可以这样：
find /usr/lib/ -name "*.so*" -exec ldd {} \; | grep "not found"
find /usr/lib/ -name "*.so*" -exec ldd {} \; 就是把文件夹/usr/lib/下所有文件名带.so的文件使用ldd处理得到依赖库列表，| 就是管道把前一个命令的输出给下一个命令（不正确，但可以简单这样看）
find 和 cp mv等命令组合比较强大。

find /usr/lib/ -name "*.so*" -exec ldd {} \;
建议改为
find /usr/lib/ -name "*.so*" -exec ldd '{}' +
\; find每找到一个文件时，就对这个文件执行一次ldd命令。
+ find每当找到的文件达到一定数量时，再统一对这些文件执行一次ldd。

后者效率较高些。

find /usr/lib/ -name "*.so*" -exec ldd {} \;
find /usr/lib/ -name "*.so*" -exec ldd '{}' +
后面的 -exec ldd {} \; 和 -exec ldd '{}' + 分别是什么意思？

比如find命令找到a、b、c文件，则
\; 是这个效果：ldd a; ldd b; ldd c
+ 是这个效果： ldd a b c
即find传递给ldd的参数个数的差异。
另外，{}一般被大多数shell程序(比如sh和bash)视为具有特殊含义的字符。
{}里被''围住，是为了反正shell程序对{}进行转义，即去特殊化。


-exec 这个是什么意思呢？

bash-4.2# find /usr/lib -maxdepth 1 -type f -exec ldd '{}' + |grep "not found"
bash-4.2# find /usr/lib64 -maxdepth 1 -type f -exec ldd '{}' + |grep "not found"
libqscintilla2.so.8 => not found
libperl.so => not found
bash-4.2#
使用你的命令查出了这个东西，在网上百度一下，是Debian包的东西，我下载了个.deb包，怎么安装呀


bash-4.2# free -m
total used free shared buffers cached
Mem: 1984 1884 100 0 0 37
-/+ buffers/cache: 1846 138
Swap: 2957 254 2703
bash-4.2#
系统刚启动，打开firefox，打开terminal，其中firefox开了两个tab。就这样，怎么内存就吃完了呢？而且我这还是在Xfce桌面系统下，不是KDE
好卡呀


bash-4.2# free -m
total used free shared buffers cached
Mem: 1984 1873 111 0 0 42
-/+ buffers/cache: 1830 154
Swap: 2957 640 2316
上面是开着firefox(两个tab,楼上有提到)
下面是关掉firefox后
bash-4.2# free -m
total used free shared buffers cached
Mem: 1984 201 1783 0 0 52
-/+ buffers/cache: 148 1836
Swap: 2957 61 2895
bash-4.2#
到底怎么回事呀？