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Homework and Emergencies Homework & Coursework Questions (t)csh command line arguments issues Post 302741187 by kcoll025 on Friday 7th of December 2012 02:29:58 PM
Old 12-07-2012
Quote:
Originally Posted by Scott
There's nothing wrong with the syntax. Can you post the exact code?

I'm using this version of tcsh:
Code:
tcsh 6.17.00 (Astron) 2009-07-10 (x86_64-apple-darwin) options wide,nls,dl,al,kan,sm,rh,color,filec

Also, can you (really, really) ask Professor Zeil why he is teaching you this crap?

I mean... C-Shell is so 1980's! Oh, and it's useless.
I have no idea why he chose c-shell. We could also use sh but csh looked easier.

This ends with Illegal variable name.

Code:
#!/bin/csh


while ( $# > 0 )
        echo "got $1"
        shift
end


as well as my full code with the while loop
Code:
#!/bin/csh

set ext = $1
shift

while ( $# > 0 )
# comments refer to issues with the forreach loop
# with double quotes show all to one name
# with single quotes foreach: No match.
# without quotes separate king cobra.dat into 2 files
echo "original input" "$1"
set oldName = "$1"
if ( -e "$oldName") then
set newName= (`echo "$oldName" | sed "s/\(.*\)\..*/\1/"`)
set newName = "$1"."$ext"

if ("$1" != "$newName") then
mv "$1" "$newName"
endif
else
    echo "$1"": No such file"
endif
shift
end

 

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echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment variables. For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows: o echo your current-working-directory's full pathname o pipe the output through tr to translate the path's embedded slash-characters into space-characters o pipe that output through wc -w for a count of the names in your path. example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w" See tr(1) and wc(1) for their functionality. The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's echo() also understands a as the audible bell character; however, these commands do not have an -n option. OPTIONS
-n Do not add the NEWLINE to the output. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5) NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases. SunOS 5.11 3 Aug 1994 echo(1B)
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