在ubuntu下安装ns2-allinone-2.35.tar.gz

$cd ns-allinone-2.35
$./install (别忘了前面的那个点)

安装过程需要一会。安装正确的话应该可以看到：

Please put /home/wangtiantian/mysoft/ns-allinone-2.35/bin:/home/wangtiantian/mysoft/ns-allinone-2.35/tcl8.5.10/unix:/home/wangtiantian/mysoft/ns-allinone-2.35/tk8.5.10/unix
into your PATH environment; so that you‘ll be able to run itm/tclsh/wish/xgraph.

IMPORTANT NOTICES:

(1) You MUST put /home/mysoft/ns-allinone-2.35/otcl-1.14, /home/mysoft/ns-allinone-2.35/lib,
    into your LD_LIBRARY_PATH environment variable.
    If it complains about X libraries, add path to your X libraries
    into LD_LIBRARY_PATH.
    If you are using csh, you can set it like:
        setenv LD_LIBRARY_PATH <paths>
    If you are using sh, you can set it like:
        export LD_LIBRARY_PATH=<paths>

(2) You MUST put /home/mysoft/ns-allinone-2.35/tcl8.5.10/library into your TCL_LIBRARY environmental
    variable. Otherwise ns/nam will complain during startup.


After these steps, you can now run the ns validation suite with
cd ns-2.35; ./validate

For trouble shooting, please first read ns problems page
http://www.isi.edu/nsnam/ns/ns-problems.html. Also search the ns mailing list archive
for related posts.


4.配置环境变量（注意路径安装第3步中红字部分）

$sudo gedit .bashrc（这里一定要看清gedit和.bashrc之间有一个空格）

在弹出来的窗口的文件末尾加入：（注意：下列代码中mysoft/是我的ns-allinone-2.35文件路径，要按照你自己的更改）
export PATH=$PATH:/home/mysoft/ns-allinone-2.35/bin:/home/mysoft/ns-allinone-2.35/tcl8.4.18/unix:/home/mysoft/ns-allinone-2.35/tk8.4.18/unix
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/mysoft/ns-allinone-2.35/otcl-1.13:/home/mysoft/ns-allinone-2.35/lib

export TCL_LIBRARY=$TCL_LIBRARY:/home/mysoft/ns-allinone-2.35/tcl8.4.18/library 
保存退出。

5.验证测试