annotate previous-work/more_control_helpers/lib/chmod @ 22:43cfd1a2c523

create program to save acls.
author Robert McIntyre <rlm@mit.edu>
date Thu, 10 Jan 2013 07:36:04 +0000
parents d6bef198ae71
children
rev   line source
rlm@1 1 #!/bin/bash
rlm@1 2 # Copyright (c) 2004 Matthias S. Benkmann <article AT winterdrache DOT de>
rlm@1 3 # You may do everything with this code except misrepresent its origin.
rlm@1 4 # PROVIDED `AS IS' WITH ABSOLUTELY NO WARRANTY OF ANY KIND!
rlm@1 5
rlm@1 6 DAISY_CHAIN=""
rlm@1 7
rlm@1 8 for p in $(type -ap chmod) ; do
rlm@1 9 if [ ! $p -ef $0 ]; then DAISY_CHAIN=$p ; break ; fi
rlm@1 10 done
rlm@1 11
rlm@1 12 if [ ! -n "$DAISY_CHAIN" ]; then
rlm@1 13 echo Cannot find real ${0##*/} command
rlm@1 14 exit 1
rlm@1 15 fi
rlm@1 16
rlm@1 17 if [ $UID == 0 ]; then
rlm@1 18 exec $DAISY_CHAIN "$@"
rlm@1 19 fi
rlm@1 20
rlm@1 21 report=0
rlm@1 22 doit=1
rlm@1 23 reportmsg="*** chmod $@"
rlm@1 24
rlm@1 25 set -- "$@" eND_ofLisT
rlm@1 26 while true ; do
rlm@1 27 arg="$1"
rlm@1 28 shift 1
rlm@1 29 case "_$arg" in
rlm@1 30 _eND_ofLisT) break ;;
rlm@1 31 _g+s|_u+s) report=1; doit=0 ;;
rlm@1 32 _4755) arg=755 ; report=1; doit=1 ;;
rlm@1 33 _4555) arg=555 ; report=1; doit=1 ;;
rlm@1 34 *) ;;
rlm@1 35 esac
rlm@1 36 set -- "$@" "$arg"
rlm@1 37 done
rlm@1 38
rlm@1 39 if [ "$report" = 1 ]; then echo 1>&2 "$reportmsg" ; fi
rlm@1 40
rlm@1 41 if [ "$doit" = 1 ]; then
rlm@1 42 exec $DAISY_CHAIN "$@"
rlm@1 43 fi
rlm@1 44
rlm@1 45 exit 0