[ns] ns command not found in other directory

[uknown noname]

what should i do if i just can only run my ns script if i'm in .../ns-allinone-2.30/ns-2.30/ directory. otherwise its will complained ns: Command not found. before this its working fine.


My system :
FC 6
2.6.18-1.2869.fc6
ns2.30
 
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