.sh to .csh

Shell Programming and Scripting
1

Hi All,
Could any one of you give me a hand to convert the following line of codes from .sh to .csh please ?

proc_id=`fuser /tmp/test`
if [ ! -n "$proc_id" ]
then
  echo "File is not being used by any thing"
fi
if [ $proc_id -ne "21" ]
then
  echo "File is being used... please wait"
  sleep 1
fi

Regards.

2 
#!/bin/csh
set proc_id=`fuser /tmp/test`
if ( $proc_id == 0 ) then
  echo "File is not being used by any thing"
endif
if ( $proc_id != 21 ) then
  echo "File is being used... please wait"
  sleep 1
endif

--ahamed

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