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229 lines
4.2 KiB
Bash
Executable File
229 lines
4.2 KiB
Bash
Executable File
#!/bin/sh
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# NAME:
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# install.sh - portable version of install(1)
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#
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# SYNOPSIS:
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# install [-CNcs] [-f flags] [-i errs] [-o owner] [-g group] [-m mode] file1 file2 ...
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# install -d [-i errs] [-o owner] [-g group] [-m mode] directory ...
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#
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# DESCRIPTION:
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# Compatible with BSD install(1). Except that '-c' is always
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# true and we always move an already installed target aside as
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# this is important on many systems. Recent BSD install(1)
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# versions have a '-b' option for this.
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#
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#
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# OPTIONS:
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# -b move previous target file aside (always true).
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#
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# -B "suffix"
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# use "suffix" instead of .old for saving existing target.
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#
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# -c copy rather than move the file into place (always true).
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#
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# -C compare. Only install if target is missing or
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# different.
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#
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# -N newer. Only install if target is missing or older.
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#
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# -s strip target
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#
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# -o "owner"
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# make target owned by "owner"
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#
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# -g "group"
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# make target group owned by "group"
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#
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# -m "mode"
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# set permissions to "mode"
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#
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# -f "flags"
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# Pass "flags" onto chflags(1)
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#
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# -i "errs"
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# Ignore errors from steps indicated by "errs" (``s,o,g,m'').
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#
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# BUGS:
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# The '-i' option is to save your sanity when 'bsd.prog.mk'
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# insists on haveing a '-o' "owner" option which is doomed to
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# fail on many systems. We ignore '-b' and '-c' options.
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#
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# AUTHOR:
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# Simon J. Gerraty <sjg@crufty.net>
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# RCSid:
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# $Id: install-sh,v 1.26 2024/02/17 17:26:57 sjg Exp $
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#
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# @(#) Copyright (c) 1993-2023 Simon J. Gerraty
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#
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# This file is provided in the hope that it will
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# be of use. There is absolutely NO WARRANTY.
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# Permission to copy, redistribute or otherwise
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# use this file is hereby granted provided that
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# the above copyright notice and this notice are
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# left intact.
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#
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# Please send copies of changes and bug-fixes to:
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# sjg@crufty.net
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#
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set -- `getopt B:bpxCNcsdo:g:m:i:f: $*`
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Mydir=`dirname $0`
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[ -s $Mydir/.installrc ] && . $Mydir/.installrc
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OLD_EXT=.old
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owner=:
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group=:
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mode=:
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MODE=0
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strip=:
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mkdirs=
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compare=:
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newer=:
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chflags=:
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LS_1=
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CP_p=
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while :
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do
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case "$1" in
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--) shift; break;;
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-[bc]) ;; # ignore
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-p) CP_p=-p;;
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-x) set -x;;
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-B) OLD_EXT=$2; shift;;
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-C) compare=Different;;
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-N) newer=Newer;
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# check if /bin/ls supports -1
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'ls' -1 $0 > /dev/null 2>&1 && LS_1=1
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;;
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-o) owner="${CHOWN:-chown} $2 "; shift;;
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-g) group="${CHGRP:-chgrp} $2 "; shift;;
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-m) MODE=$2 mode="${CHMOD:-chmod} $2 "; shift;;
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-s) strip=${STRIP:-strip};;
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-d) mkdirs="mkdir -p";;
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-i) ignore_err="$ignore_err$2"; shift;;
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-f) chflags="${CHFLAGS:-chflags} $2 "; shift;;
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*) break;;
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esac
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shift
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done
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Newer() {
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n=`'ls' -t$LS_1 $* 2> /dev/null | head -1`
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[ $1 = $n ]
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}
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Different() {
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cmp -s $*
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[ $? != 0 ]
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}
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Err() {
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case "$ignore_err" in
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*$1*) ;;
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*) exit 1;;
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esac
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}
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Setem() {
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# the order is important
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if [ ! -d $1 ]; then
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$strip $1 || Err s
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fi
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$group $1 || Err g
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$owner $1 || Err o
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$mode $1 || Err m
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$chflags $1 || Err f
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return 0
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}
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# a bug in HP-UX's /bin/sh, means we need to re-set $*
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# after any calls to add_path()
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args="$*"
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add_path () {
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test -d $1 || return
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case ":$PATH:" in
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*:$1:*) return;;
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esac
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PATH=$PATH:$1
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}
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add_path /sbin
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add_path /usr/sbin
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case "$owner" in
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:) ;;
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*) # some systems put chown in odd places
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add_path /etc
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add_path /usr/etc
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;;
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esac
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# restore saved $*
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set -- $args
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# make directories if needed
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# and ensure mode etc are as desired
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if [ "$mkdirs" ]; then
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case "$MODE" in
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[1-7]*)
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# make sure umask is compatible
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case "$MODE" in
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????*) MODE=`echo $MODE | sed 's,.*\(...\)$,\1,'`;;
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esac
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umask `expr 0777 - 0$MODE |
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sed 's,^,000,;s,^.*\(...\)$,\1,'`;;
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esac
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for d in $*
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do
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[ ! -d $d ] && $mkdirs $d
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Setem $d
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done
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exit 0 # that's all we do
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fi
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# install files
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if [ $# -eq 1 ]; then
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echo "what should I do with $*?" >&2
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exit 1
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fi
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# get list of files
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files=
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while [ $# -gt 1 ]
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do
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test "x$files" = x || dest_dir=yes
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files="$files $1"
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shift
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done
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# last one is dest
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dest=$1
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shift
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if [ "$dest_dir" = yes -a ! -d $dest ]; then
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echo "no directory $dest" >&2
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exit 1
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fi
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for f in $files
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do
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b=`basename $f`
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if [ -d $dest ]; then
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t=$dest/$b
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else
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t=$dest
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fi
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$newer $f $t || continue
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$compare $f $t || continue
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[ -f $t ] && { mv -f $t $t$OLD_EXT || exit 1; }
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{ cp $CP_p $f $t && Setem $t; } || exit 1
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done
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exit 0
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