While loop in tcsh
in [Shell]
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From: Melvin on 22 Jan 2010 01:48 Hi, I was trying to code a simple while loop in tcsh shell. #!/bin/tcsh set cnt=5 while ($cnt > 0) cnt = $cnt(`expr($cnt - 1)) end However I am getting the following error : cnt=4: command not found (Error is going on till <ctrl+c> is pressed. Is this an error with the syntax? Thanks Unix baby
From: Bit Twister on 22 Jan 2010 01:55 On Thu, 21 Jan 2010 22:48:52 -0800 (PST), Melvin wrote: > Hi, > > I was trying to code a simple while loop in tcsh shell. > > #!/bin/tcsh > set cnt=5 > while ($cnt > 0) > cnt = $cnt(`expr($cnt - 1)) > end > > However I am getting the following error : > cnt=4: command not found (Error is going on till <ctrl+c> is pressed. > > Is this an error with the syntax? Yes. > cnt = $cnt(`expr($cnt - 1)) ^ ^ | | You have-----' and missing--'
From: Sidney Lambe on 22 Jan 2010 04:16 On comp.unix.shell, Melvin <whereismelvin(a)gmail.com> wrote: > Hi, > > I was trying to code a simple while loop in tcsh shell. > Anyone trying to learn to script in a c-shell would have to be doing simple things, because they are obviously simple. Try opening your eyes. Almost everyone in the world is using a POSIX shell, usually bash. This has got to be a braindead troll jerking the group around. This sort of stupid, childish game makes them feel superior. Killfiled. Sid
From: Rakesh Sharma on 22 Jan 2010 13:17 On Jan 22, 11:48 am, Melvin <whereismel...(a)gmail.com> wrote: > Hi, > > I was trying to code a simple while loop in tcsh shell. > > #!/bin/tcsh > set cnt=5 > while ($cnt > 0) > cnt = $cnt(`expr($cnt - 1)) > end > > However I am getting the following error : > cnt=4: command not found (Error is going on till <ctrl+c> is pressed.. > > Is this an error with the syntax? > > Thanks > Unix baby For math operations we have the @ operator in the c-shell & it's ilk, like so: #!/bin/tcsh -f @ cnt = 5 while ( $cnt > 0 ) echo $cnt @ cnt-- end -- Rakesh
From: Barry Margolin on 22 Jan 2010 19:59
In article <041cb750-67fb-478e-91de-1ca043e5bca9(a)a32g2000yqm.googlegroups.com>, Melvin <whereismelvin(a)gmail.com> wrote: > Hi, > > I was trying to code a simple while loop in tcsh shell. > > #!/bin/tcsh > set cnt=5 > while ($cnt > 0) > cnt = $cnt(`expr($cnt - 1)) > end > > However I am getting the following error : > cnt=4: command not found (Error is going on till <ctrl+c> is pressed. > > Is this an error with the syntax? You left out the command "set" in the assignment inside the loop. -- Barry Margolin, barmar(a)alum.mit.edu Arlington, MA *** PLEASE post questions in newsgroups, not directly to me *** *** PLEASE don't copy me on replies, I'll read them in the group *** |