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Help on command line argument in csh

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# 1  
Old 09-27-2011
Help on command line argument in csh
HI ,
I am new to csh. I need to pass some command line arguments like
./abc.sh -os Linux -path abc -tl aa -PILX 1
I have defined the loop as shown below. But its taking "-os" switches as arguments. Its treating them as arguments.
How to resolve it?
Code:
while ( $#argv != 0 )
   switch ($argv[1])
     "-kit":
       KIT=$2;
       echo "Proc arg missing"
       breaksw
     "-type":
       TYPE=$1;
       echo "TYPE is $1"
       breaksw
     "-tl":
       TL=$1;
       echo "TL is $1"
       breaksw
     "-PILX":
       PILX=$1;
       echo "PIL is $1"
       breaksw
     default:
       echo "Invalid arg"
       breaksw
   endsw

Should i use getopt? if yes then how? Please help me.
Last edited by Scott; 09-27-2011 at 09:36 AM.. Reason: Code tags, please...
# 2  
Old 09-27-2011
Try this...
Code:
#!/bin/bash
while [ $# -gt 0 ]
do
 arg=$1; shift
 val=$1; shift
 case $arg in
   "-os")OS=$val
   ;;
   "-path")VPATH=$val
   ;;
   "-tl")TL=$val
   ;;
   "-PILX")PILX=$val
   ;;
 esac
done
 
echo "OS : $OS"
echo "VPATH : $VPATH"
echo "TL : $TL"
echo "PILX : $PILX"

AFAIK, I don't think we can use getopt for options spanning more than one char i.e. -path or -os etc.
Can we?

--ahamed
# 3  
Old 09-27-2011
Thanks ahamed but I need in csh not bash.
# 4  
Old 09-27-2011
Ok, I just saw the "csh" part. I am not sure if this will work in "csh" shell.

--ahamed
# 5  
Old 09-27-2011
No, it wont work. I tried that already.
# 6  
Old 09-27-2011
Are you not missing the "case" keyword?

Code:
#!/usr/bin/csh
while ( $#argv != 0 )
   switch ( $argv[1] )
     case "-kit":
       KIT=$2;
       echo "Proc arg missing"
       shift
       breaksw
     case "-type":
       TYPE=$1;
       echo "TYPE is $1"
       breaksw
     case "-tl":
       TL=$1;
       echo "TL is $1"
       breaksw
     case "-PILX":
       PILX=$1;
       echo "PIL is $1"
       breaksw
     default:
       echo "Invalid arg"
       breaksw
   endsw
   shift
end

And why does it have to be C-Shell? Why not use a proper shell?!

Why do some options in the example command you posted not appear in the switch statement?
This User Gave Thanks to Scott For This Post:
vineet.dhingra
# 7  
Old 09-27-2011
CSH

Code:
#!/bin/csh
while ( $#argv != 0 )
  switch ($argv[1])
    case "-kit":
       set KIT=$2;
        echo "KIT is $KIT"
        breaksw
    case "-type":
      set TYPE=$2;
      echo "TYPE is $TYPE"
      breaksw
    case "-tl":
      set TL=$2;
      echo "TL is $TL"
      breaksw
    case "-PLIX":
      set PLIX=$2;
      echo "PLIX is $PLIX"
      breaksw
    default:
      echo "Invalid arg"
      breaksw
  endsw
  shift
  shift
end

--ahamed
This User Gave Thanks to ahamed101 For This Post:
vineet.dhingra
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