title: bash: :/usr/X11R6/lib:/usr/local/lib: No such file or directory
body: <p>I started to install ns2, and after that any time I open the terminal I get this message</p>
  
  <p>bash: :/usr/X11R6/lib:/usr/local/lib: No such file or directory</p>
  
  <p>Any idea?!</p>
  
  <p>I added to this to my bashrc</p>
  
  <pre><code># LD_LIBRARY_PATH
  OTCL_LIB=/home/Apps/ns-allinone-2.35/otcl-1.14
  NS2_LIB=/home/Apps/ns-allinone-2.35/lib
  X11_LIB=/usr/X11R6/lib
  USR_LOCAL_LIB=/usr/local/lib
  export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$OTCL_LIB:$NS2_LIB
  :$X11_LIB:$USR_LOCAL_LIB
  
  # TCL_LIBRARY
  TCL_LIB=/home/Apps/ns-allinone-2.35/tcl8.5.10/library
  USR_LIB=/usr/lib
  export TCL_LIBRARY=$TCL_LIB:$USR_LIB
  
  # PATH
  XGRAPH=/home/Apps/ns-allinone-2.35/bin:/home/Apps/ns-allinone-2.35/tcl8.5.10/unix:/home/Apps/ns-allinone-2.35/tk8.5.10/unix:/home/Apps/ns-allinone-2.33/xgraph-12.2/
  NS=/home/Apps/ns-allinone-2.35/ns-2.35/
  NAM=/home/Apps/ns-allinone-2.35/nam-1.15/
  export PATH=$PATH:$XGRAPH:$NS:$NAM
  </code></pre>