If statement - tcsh

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http://www.linuxquestions.org – I need to loop through a bunch of different scenarios (variable scen), but can't figure out how to use the if statements in the tcsh shell script. Getting the error "if: Expression Syntax" Can someone please tell me what I have wrong? Simplified code follows! Thanks! #!/bin/tcsh -f # set val = 0 foreach scen ( a b ) echo $scen if ($scen==a) then echo $scen else echo $val endif end (HowTos)