which/which.csh

   1 #!/bin/csh
   2 #
   3 # DO NOT USE "csh -f"
   4 #
   5 # Copyright (c) 1983 The Regents of the University of California.
   6 # All rights reserved.
   7 #
   8 # Redistribution and use in source and binary forms, with or without
   9 # modification, are permitted provided that the following conditions
  10 # are met:
  11 # 1. Redistributions of source code must retain the above copyright
  12 #    notice, this list of conditions and the following disclaimer.
  13 # 2. Redistributions in binary form must reproduce the above copyright
  14 #    notice, this list of conditions and the following disclaimer in the
  15 #    documentation and/or other materials provided with the distribution.
  16 # 3. All advertising materials mentioning features or use of this software
  17 #    must display the following acknowledgement:
  18 #       This product includes software developed by the University of
  19 #       California, Berkeley and its contributors.
  20 # 4. Neither the name of the University nor the names of its contributors
  21 #    may be used to endorse or promote products derived from this software
  22 #    without specific prior written permission.
  23 #
  24 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34 # SUCH DAMAGE.
  35 #
  36 #       @(#)which.csh   5.5 (Berkeley) 4/18/91
  37 #
  38
  39 #       which : tells you which program you get
  40 #
  41 set prompt = "% "
  42 set noglob
  43 foreach arg ( $argv )
  44     set alius = `alias $arg`
  45     switch ( $#alius )
  46         case 0 :
  47             breaksw
  48         case 1 :
  49             set arg = $alius[1]
  50             breaksw
  51         default :
  52             echo ${arg}: "      " aliased to $alius
  53             continue
  54     endsw
  55     unset found
  56     if ( $arg:h != $arg:t ) then
  57         if ( -e $arg ) then
  58             echo $arg
  59         else
  60             echo $arg not found
  61         endif
  62         continue
  63     else
  64         foreach i ( $path )
  65             if ( -x $i/$arg && ! -d $i/$arg ) then
  66                 echo $i/$arg
  67                 set found
  68                 break
  69             endif
  70         end
  71     endif
  72     if ( ! $?found ) then
  73         echo no $arg in $path
  74     endif
  75 end