This sounds like you haven't installed nam properly. Make sure you have added the path to the nam binary to your shell variable $PATH (I am presuming you are using Linux and bash as you didn't specify) using the following :
export $PATH="$PATH:/path/to/nam/binary" Note : this will have to be done every time you start a new terminal as it only lasts as long as that particular session. To make it perminent, you will have to enter this line into either your .bashrc or .bash_profile (or similar) Matt On Wednesday 28 June 2006 03:21, pyramidal wrote: Hi guys, After the installation,I run a simple script exampe1a.tcl which is contained in ns-tutorial.However,the command window displays the followings: ns: finish:couldn't excute "nam":no such file or directory while excuting "exec nam out.nam &" (procedure "finish" line 7) invoked from within "finish" Where does the problem lie? Thanks in advance!