#!/bin/csh

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• Top Ten Reasons not to use the C shell

Welcome to the C shell.

Output to dev/null:

portsnap extract >& /dev/null

• -e file exists
• -o file exists and is owned by the user
• -r file exists and is readable
• -w file exists and is writable
• -x file exists and is executable
• -z file exists and is zero size
• -d dir exists and is a directory

The syntax is different here, in that there is no in keyword.

#!/bin/csh
foreach x ( one two three )
  echo number $x!
end

#!/bin/csh
foreach filename ( foo.tar.gz bar.tar.bz2 )
  if ( ! -e $filename ) then
    echo "I can't find $filename anywhere!"
  endif
end

#!/bin/csh
echo found $#argv arguments
echo first argument is: $argv[1]
echo second argument is: $argv[2]

args.csh Hello CSH