/usr/share/cmake-2.8/Modules/FindUnixCommands.cmake is in cmake-data 2.8.12.2-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | # - Find unix commands from cygwin
# This module looks for some usual Unix commands.
#
#=============================================================================
# Copyright 2001-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
#  License text for the above reference.)
include(${CMAKE_CURRENT_LIST_DIR}/FindCygwin.cmake)
find_program(BASH
  bash
  ${CYGWIN_INSTALL_PATH}/bin
  /bin
  /usr/bin
  /usr/local/bin
  /sbin
)
mark_as_advanced(
  BASH
)
find_program(CP
  cp
  ${CYGWIN_INSTALL_PATH}/bin
  /bin
  /usr/bin
  /usr/local/bin
  /sbin
)
mark_as_advanced(
  CP
)
find_program(GZIP
  gzip
  ${CYGWIN_INSTALL_PATH}/bin
  /bin
  /usr/bin
  /usr/local/bin
  /sbin
)
mark_as_advanced(
  GZIP
)
find_program(MV
  mv
  ${CYGWIN_INSTALL_PATH}/bin
  /bin
  /usr/bin
  /usr/local/bin
  /sbin
)
mark_as_advanced(
  MV
)
find_program(RM
  rm
  ${CYGWIN_INSTALL_PATH}/bin
  /bin
  /usr/bin
  /usr/local/bin
  /sbin
)
mark_as_advanced(
  RM
)
find_program(TAR
  NAMES
  tar
  gtar
  PATH
  ${CYGWIN_INSTALL_PATH}/bin
  /bin
  /usr/bin
  /usr/local/bin
  /sbin
)
mark_as_advanced(
  TAR
)
 |