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📁 ..
📄 7za(49 B)
📄 [(51.8 KB)
📄 aclocal(35.52 KB)
📄 aclocal-1.16(35.52 KB)
📄 addr2line(27.74 KB)
📄 ar(55.98 KB)
📄 arch(31.66 KB)
📄 arpaname(15.11 KB)
📄 as(710.31 KB)
📄 aspell(151.12 KB)
📄 autoconf(14.42 KB)
📄 autoheader(8.33 KB)
📄 autom4te(31.43 KB)
📄 automake(251.93 KB)
📄 automake-1.16(251.93 KB)
📄 autoreconf(20.57 KB)
📄 autoscan(16.72 KB)
📄 autoupdate(33.08 KB)
📄 awk(698.17 KB)
📄 b2sum(51.79 KB)
📄 base32(35.69 KB)
📄 base64(35.7 KB)
📄 basename(35.67 KB)
📄 basenc(48.02 KB)
📄 bash(1.32 MB)
📄 bashbug-64(6.91 KB)
📄 bunzip2(39.62 KB)
📄 bzcat(39.62 KB)
📄 bzcmp(2.09 KB)
📄 bzdiff(2.09 KB)
📄 bzgrep(2.01 KB)
📄 bzip2(39.62 KB)
📄 bzip2recover(15.4 KB)
📄 bzless(1.23 KB)
📄 bzmore(1.23 KB)
📄 c++(1.04 MB)
📄 c++filt(27.18 KB)
📄 cagefs_enter.proxied(1.27 KB)
📄 cal(52.01 KB)
📄 captoinfo(87.8 KB)
📄 cat(35.66 KB)
📄 catchsegv(3.21 KB)
📄 cc(0 B)
📄 ccmake(6.96 MB)
📄 chcon(60.24 KB)
📄 chgrp(56.19 KB)
📄 chmod(56.16 KB)
📄 chown(60.19 KB)
📄 chrt(27.48 KB)
📄 cksum(35.57 KB)
📄 clear(15.16 KB)
📄 cloudlinux-awp-user(1.78 KB)
📄 clwpos-user(1.78 KB)
📄 cmake(7.45 MB)
📄 cmp(40.13 KB)
📄 col(23.41 KB)
📄 colcrt(15.38 KB)
📄 colrm(15.36 KB)
📄 column(35.52 KB)
📄 comm(35.75 KB)
📄 cp(149.24 KB)
📄 cpack(7.35 MB)
📄 cpp(1.04 MB)
📄 csplit(108.88 KB)
📄 ctest(8.31 MB)
📄 curl(248.49 KB)
📄 cut(47.8 KB)
📄 cyrusbdb2current(1.58 MB)
📄 date(104.05 KB)
📄 dbiprof(6.06 KB)
📄 delv(45.38 KB)
📄 df(84.73 KB)
📄 diff(194.7 KB)
📄 diff3(52.3 KB)
📄 dig(136.59 KB)
📄 dir(137.65 KB)
📄 dircolors(39.8 KB)
📄 dirname(31.48 KB)
📄 dltest(15.68 KB)
📄 dnstap-read(23.19 KB)
📄 du(149.44 KB)
📄 echo(35.48 KB)
📄 ed(52.51 KB)
📄 egrep(32 B)
📄 enchant(23.73 KB)
📄 enchant-lsmod(15.8 KB)
📄 env(44.23 KB)
📄 eps2eps(643 B)
📄 eqn(189.52 KB)
📄 ex(1.38 MB)
📄 expand(39.73 KB)
📄 expr(108.6 KB)
📄 factor(72.05 KB)
📄 false(27.47 KB)
📄 fc-cache(139 B)
📄 fc-cache-64(23.17 KB)
📄 fc-cat(19.16 KB)
📄 fc-conflist(15.13 KB)
📄 fc-list(15.13 KB)
📄 fc-match(15.13 KB)
📄 fc-pattern(15.14 KB)
📄 fc-query(15.13 KB)
📄 fc-scan(15.14 KB)
📄 fc-validate(15.14 KB)
📄 fgrep(32 B)
📄 file(27.74 KB)
📄 find(284.95 KB)
📄 flock(23.56 KB)
📄 fmt(39.77 KB)
📄 fold(39.71 KB)
📄 free(23.36 KB)
📄 funzip(31.42 KB)
📄 g++(1.04 MB)
📄 gawk(698.17 KB)
📄 gcc-ar(27.81 KB)
📄 gcc-nm(27.8 KB)
📄 gcc-ranlib(27.82 KB)
📄 gcov-dump(283.74 KB)
📄 gcov-tool(312.46 KB)
📄 gem(542 B)
📄 gencat(27.45 KB)
📄 geoiplookup(15.86 KB)
📄 geoiplookup6(15.81 KB)
📄 geqn(189.52 KB)
📄 getconf(35.23 KB)
📄 getent(35.86 KB)
📄 getopt(23.45 KB)
📄 ghostscript(15.13 KB)
📄 gifdiff(55.9 KB)
📄 gifsicle(194.05 KB)
📄 git(4.06 MB)
📄 git-receive-pack(4.06 MB)
📄 git-shell(770.68 KB)
📄 git-upload-archive(4.06 MB)
📄 git-upload-pack(4.06 MB)
📄 gm(15.67 KB)
📄 gmake(249.8 KB)
📄 gneqn(916 B)
📄 gnroff(3.21 KB)
📄 gpg(1.07 MB)
📄 gpg-agent(342.25 KB)
📄 gpg-error(36.1 KB)
📄 gpgsplit(27.49 KB)
📄 gpgv(295.42 KB)
📄 gpic(201.72 KB)
📄 gprof(101.48 KB)
📄 grep(154.49 KB)
📄 groff(96.77 KB)
📄 grops(167.26 KB)
📄 grotty(122.2 KB)
📄 groups(35.66 KB)
📄 gs(15.13 KB)
📄 gsnd(281 B)
📄 gsoelim(0 B)
📄 gtar(514.27 KB)
📄 gtbl(130.86 KB)
📄 gtroff(732.07 KB)
📄 gunzip(2.29 KB)
📄 gzexe(6.3 KB)
📄 gzip(89.63 KB)
📄 hdu(18.09 KB)
📄 head(43.8 KB)
📄 hexdump(51.59 KB)
📄 host(108.57 KB)
📄 hostid(31.66 KB)
📄 hostname(23.84 KB)
📄 hunspell(102.67 KB)
📄 iconv(64.09 KB)
📄 id(39.71 KB)
📄 idn(35.8 KB)
📄 ifnames(4.03 KB)
📄 infocmp(63.69 KB)
📄 infotocap(87.8 KB)
📄 install(149.29 KB)
📄 ionice(15.4 KB)
📄 ipcrm(19.41 KB)
📄 ipcs(39.52 KB)
📄 isosize(15.34 KB)
📄 ispell(992 B)
📄 isql(40.01 KB)
📄 iusql(31.95 KB)
📄 join(51.9 KB)
📄 jpegoptim(48.83 KB)
📄 kill(31.47 KB)
📄 ld(1.71 MB)
📄 ld.bfd(1.71 MB)
📄 ldd(5.32 KB)
📄 less(197.9 KB)
📄 lessecho(15.37 KB)
📄 lesskey(24.8 KB)
📄 lesspipe.sh(3.5 KB)
📄 link(31.66 KB)
📄 ln(60.16 KB)
📄 locale(59.08 KB)
📄 localedef(314.06 KB)
📄 logger(36.16 KB)
📄 login(43.62 KB)
📄 logname(31.66 KB)
📄 look(19.36 KB)
📄 ls(137.64 KB)
📄 lto-dump(26.58 MB)
📄 m4(240.4 KB)
📄 make(249.8 KB)
📄 make-dummy-cert(614 B)
📄 mariadb(5.12 MB)
📄 mariadb-access(109.48 KB)
📄 mariadb-admin(4.89 MB)
📄 mariadb-binlog(5.16 MB)
📄 mariadb-check(4.89 MB)
📄 mariadb-conv(4.6 MB)
📄 mariadb-convert-table-format(4.28 KB)
📄 mariadb-dump(4.99 MB)
📄 mariadb-dumpslow(8.19 KB)
📄 mariadb-embedded(24.72 MB)
📄 mariadb-find-rows(3.35 KB)
📄 mariadb-hotcopy(34.67 KB)
📄 mariadb-import(5 MB)
📄 mariadb-plugin(4.58 MB)
📄 mariadb-secure-installation(13.66 KB)
📄 mariadb-setpermission(17.7 KB)
📄 mariadb-show(4.88 MB)
📄 mariadb-slap(4.89 MB)
📄 mariadb-tzinfo-to-sql(4.57 MB)
📄 mariadb-waitpid(4.56 MB)
📄 mc(1.22 MB)
📄 mcdiff(1.22 MB)
📄 mcedit(1.22 MB)
📄 mcookie(27.5 KB)
📄 mcview(1.22 MB)
📄 md5sum(39.64 KB)
📄 mesg(15.33 KB)
📄 mkdir(68.31 KB)
📄 mkfifo(39.83 KB)
📄 mknod(43.88 KB)
📄 mktemp(39.8 KB)
📄 more(43.63 KB)
📄 msmtp(133.98 KB)
📄 msmtpd(35.65 KB)
📄 msql2mysql(1.42 KB)
📄 mv(141.17 KB)
📄 my_print_defaults(4.56 MB)
📄 mysql(5.12 MB)
📄 mysql_config(4.47 KB)
📄 mysql_find_rows(3.35 KB)
📄 mysql_waitpid(4.56 MB)
📄 mysqlaccess(109.48 KB)
📄 mysqladmin(4.89 MB)
📄 mysqlbinlog(5.16 MB)
📄 mysqlcheck(4.89 MB)
📄 mysqldump(4.99 MB)
📄 mysqlimport(5 MB)
📄 mysqlshow(4.88 MB)
📄 mytop(72.03 KB)
📄 namei(23.41 KB)
📄 nano(346.2 KB)
📄 neqn(916 B)
📄 nice(35.67 KB)
📄 nl(100.71 KB)
📄 nm(44.71 KB)
📄 nohup(35.58 KB)
📄 nproc(35.69 KB)
📄 nroff(3.21 KB)
📄 nslookup(112.52 KB)
📄 nsupdate(71.8 KB)
📄 numfmt(55.83 KB)
📄 objcopy(185.37 KB)
📄 objdump(413.09 KB)
📄 od(64.06 KB)
📄 odbc_config(15.7 KB)
📄 odbcinst(23.9 KB)
📄 openssl(1.01 MB)
📄 optipng(92.02 KB)
📄 pango-list(19.11 KB)
📄 pango-segmentation(19.13 KB)
📄 pango-view(60.17 KB)
📄 passwd(1.26 KB)
📄 paste(35.58 KB)
📄 patch(195.02 KB)
📄 pathchk(35.66 KB)
📄 pdf2dsc(701 B)
📄 pdf2ps(913 B)
📄 perldoc(118 B)
📄 pgrep(31.42 KB)
📄 php(10.1 MB)
📄 php-cgi(8.1 MB)
📄 phpize(4.97 KB)
📄 pic(201.72 KB)
📄 piconv(8.08 KB)
📄 ping(76.51 KB)
📄 pinky(35.61 KB)
📄 pkill(31.42 KB)
📄 pmap(35.39 KB)
📄 pod2man(14.68 KB)
📄 pod2text(10.55 KB)
📄 pod2usage(4.01 KB)
📄 post-grohtml(199.76 KB)
📄 pr(72.28 KB)
📄 pre-grohtml(92.92 KB)
📄 precat(5.53 KB)
📄 preunzip(5.53 KB)
📄 prezip(5.53 KB)
📄 prezip-bin(15.69 KB)
📄 printenv(31.47 KB)
📄 printf(51.77 KB)
📄 ps(141.15 KB)
📄 ps2ascii(635 B)
📄 ps2epsi(1.24 KB)
📄 ps2pdf(276 B)
📄 ps2pdf12(219 B)
📄 ps2pdf13(219 B)
📄 ps2pdf14(219 B)
📄 ps2pdfwr(1.06 KB)
📄 ps2ps(651 B)
📄 ps2ps2(673 B)
📄 ptx(129.03 KB)
📄 pwd(35.7 KB)
📄 pwdx(15.28 KB)
📄 pydoc(78 B)
📄 pydoc3(78 B)
📄 pydoc3.9(78 B)
📄 python(15.09 KB)
📄 python3(15.09 KB)
📄 python3.9(15.09 KB)
📄 ranlib(56 KB)
📄 readelf(667.28 KB)
📄 readlink(39.69 KB)
📄 realpath(39.77 KB)
📄 recode(31.93 KB)
📄 red(92 B)
📄 rename(23.41 KB)
📄 renew-dummy-cert(729 B)
📄 renice(15.36 KB)
📄 replace(4.54 MB)
📄 reset(27.34 KB)
📄 restic(28.4 MB)
📄 rev(15.35 KB)
📄 rm(60.21 KB)
📄 rmdir(43.61 KB)
📄 rnano(346.2 KB)
📄 rsync(559.16 KB)
📄 rsync-ssl(5.01 KB)
📄 ruby(15.27 KB)
📄 run-with-aspell(89 B)
📄 runcon(35.65 KB)
📄 rvi(1.38 MB)
📄 rview(1.38 MB)
📄 rvim(3.84 MB)
📄 scalar(819.34 KB)
📄 scl(39.55 KB)
📄 scl_enabled(262 B)
📄 scl_source(1.88 KB)
📄 scp(133.06 KB)
📄 script(51.75 KB)
📄 sdiff(44.2 KB)
📄 sed(114.01 KB)
📄 seq(47.79 KB)
📄 setsid(15.34 KB)
📄 setterm(35.52 KB)
📄 sftp(141.05 KB)
📄 sh(1.32 MB)
📄 sha1sum(39.64 KB)
📄 sha224sum(39.64 KB)
📄 sha256sum(39.64 KB)
📄 sha384sum(39.64 KB)
📄 sha512sum(39.64 KB)
📄 shred(51.88 KB)
📄 shuf(48.01 KB)
📄 size(31.61 KB)
📄 skill(31.4 KB)
📄 slabtop(23.42 KB)
📄 sleep(35.65 KB)
📄 slencheck(15.71 KB)
📄 snice(31.4 KB)
📄 soelim(0 B)
📄 sort(113.09 KB)
📄 spell(125 B)
📄 split(52.31 KB)
📄 sprof(35.45 KB)
📄 sqlite3(1.52 MB)
📄 ssh(843.53 KB)
📄 ssh-add(164.86 KB)
📄 ssh-agent(281.02 KB)
📄 ssh-copy-id(12.38 KB)
📄 ssh-keygen(455.04 KB)
📄 ssh-keyscan(197.43 KB)
📄 stat(80.06 KB)
📄 stdbuf(43.74 KB)
📄 strace(2.08 MB)
📄 strings(31.74 KB)
📄 strip(185.36 KB)
📄 stty(75.83 KB)
📄 sum(35.59 KB)
📄 svn(446.56 KB)
📄 svnadmin(136.45 KB)
📄 svndumpfilter(44.15 KB)
📄 svnfsfs(44.03 KB)
📄 svnlook(92.23 KB)
📄 svnrdump(56.23 KB)
📄 svnserve(112.91 KB)
📄 svnsync(68.41 KB)
📄 svnversion(15.72 KB)
📄 sync(35.54 KB)
📄 tabs(19.16 KB)
📄 tac(104.6 KB)
📄 tail(68.09 KB)
📄 tar(514.27 KB)
📄 taskset(23.41 KB)
📄 tbl(130.86 KB)
📄 tclsh(15.69 KB)
📄 tclsh8.6(15.69 KB)
📄 tee(35.69 KB)
📄 test(43.79 KB)
📄 tic(87.8 KB)
📄 timeout(40.17 KB)
📄 tload(19.34 KB)
📄 tmpwatch(36.03 KB)
📄 toe(23.23 KB)
📄 top(132.27 KB)
📄 touch(92.03 KB)
📄 tput(27.25 KB)
📄 tr(47.87 KB)
📄 tree(85.45 KB)
📄 troff(732.07 KB)
📄 true(27.47 KB)
📄 truncate(35.66 KB)
📄 tset(27.34 KB)
📄 tsort(47.79 KB)
📄 tty(31.65 KB)
📄 tzselect(14.99 KB)
📄 ul(23.45 KB)
📄 uname(31.66 KB)
📄 unexpand(39.73 KB)
📄 uniq(43.83 KB)
📄 unlink(31.66 KB)
📄 unrar(347.02 KB)
📄 unzip(196.14 KB)
📄 unzipsfx(87.89 KB)
📄 uptime(15.29 KB)
📄 users(35.68 KB)
📄 utmpdump(23.4 KB)
📄 vdir(137.65 KB)
📄 vi(691 B)
📄 view(150 B)
📄 vim(3.84 MB)
📄 vimdiff(3.84 MB)
📄 vimtutor(2.07 KB)
📄 vmstat(39.41 KB)
📄 watch(27.87 KB)
📄 wc(43.73 KB)
📄 wget(521.41 KB)
📄 whereis(32.03 KB)
📄 which(27.89 KB)
📄 who(51.77 KB)
📄 whoami(31.66 KB)
📄 word-list-compress(15.7 KB)
📄 x86_64-redhat-linux-c++(1.04 MB)
📄 x86_64-redhat-linux-g++(1.04 MB)
📄 x86_64-redhat-linux-gcc-11(1.04 MB)
📄 xargs(64.09 KB)
📄 xmlcatalog(23.15 KB)
📄 xmllint(80.55 KB)
📄 xmlwf(39.63 KB)
📄 xsltproc(31.23 KB)
📄 xxd(19.31 KB)
📄 yes(31.51 KB)
📄 zcat(1.94 KB)
📄 zcmp(1.64 KB)
📄 zdiff(6.31 KB)
📄 zegrep(33 B)
📄 zfgrep(33 B)
📄 zforce(2.04 KB)
📄 zgrep(7.93 KB)
📄 zip(221.09 KB)
📄 zipcloak(75.7 KB)
📄 zipgrep(2.89 KB)
📄 zipinfo(196.14 KB)
📄 zipnote(67.61 KB)
📄 zipsplit(63.58 KB)
📄 zless(2.16 KB)
📄 zmore(1.8 KB)
📄 znew(4.47 KB)
📄 zsoelim(0 B)

Editing: ssh-copy-id

#!/usr/bin/sh

# Copyright (c) 1999-2020 Philip Hands <phil@hands.com>
#               2020 Matthias Blümel <blaimi@blaimi.de>
#               2017 Sebastien Boyron <seb@boyron.eu>
#               2013 Martin Kletzander <mkletzan@redhat.com>
#               2010 Adeodato =?iso-8859-1?Q?Sim=F3?= <asp16@alu.ua.es>
#               2010 Eric Moret <eric.moret@gmail.com>
#               2009 Xr <xr@i-jeuxvideo.com>
#               2007 Justin Pryzby <justinpryzby@users.sourceforge.net>
#               2004 Reini Urban <rurban@x-ray.at>
#               2003 Colin Watson <cjwatson@debian.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# Shell script to install your public key(s) on a remote machine
# See the ssh-copy-id(1) man page for details

# shellcheck shell=dash

# check that we have something mildly sane as our shell, or try to find something better
if false ^ printf "%s: WARNING: ancient shell, hunting for a more modern one... " "$0"
then
  SANE_SH=${SANE_SH:-/usr/bin/ksh}
  if printf 'true ^ false\n' | "$SANE_SH"
  then
    printf "'%s' seems viable.\\n" "$SANE_SH"
    exec "$SANE_SH" "$0" "$@"
  else
    cat <<-EOF
	oh dear.

If you have a more recent shell available, that supports \$(...) etc.
	  please try setting the environment variable SANE_SH to the path of that
	  shell, and then retry running this script. If that works, please report
	  a bug describing your setup, and the shell you used to make it work.

EOF
    printf '%s: ERROR: Less dimwitted shell required.\n' "$0"
    exit 1
  fi
fi

# shellcheck disable=SC2010
DEFAULT_PUB_ID_FILE=$(ls -t "${HOME}"/.ssh/id*.pub 2>/dev/null | grep -v -- '-cert.pub$' | head -n 1)
SSH="ssh -a -x"
umask 0177

usage () {
  printf 'Usage: %s [-h|-?|-f|-n|-s] [-i [identity_file]] [-p port] [-F alternative ssh_config file] [[-o <ssh -o options>] ...] [user@]hostname\n' "$0" >&2
  printf '\t-f: force mode -- copy keys without trying to check if they are already installed\n' >&2
  printf '\t-n: dry run    -- no keys are actually copied\n' >&2
  printf '\t-s: use sftp   -- use sftp instead of executing remote-commands. Can be useful if the remote only allows sftp\n' >&2
  printf '\t-h|-?: print this help\n' >&2
  exit 1
}

# escape any single quotes in an argument
quote() {
  printf '%s\n' "$1" | sed -e "s/'/'\\\\''/g"
}

use_id_file() {
  L_ID_FILE="$1"

if [ -z "$L_ID_FILE" ] ; then
    printf '%s: ERROR: no ID file found\n' "$0"
    exit 1
  fi

if expr "$L_ID_FILE" : '.*\.pub$' >/dev/null ; then
    PUB_ID_FILE="$L_ID_FILE"
  else
    PUB_ID_FILE="$L_ID_FILE.pub"
  fi

[ "$FORCED" ] || PRIV_ID_FILE=$(dirname "$PUB_ID_FILE")/$(basename "$PUB_ID_FILE" .pub)

# check that the files are readable
  for f in "$PUB_ID_FILE" ${PRIV_ID_FILE:+"$PRIV_ID_FILE"} ; do
    ErrMSG=$( { : < "$f" ; } 2>&1 ) || {
      L_PRIVMSG=""
      [ "$f" = "$PRIV_ID_FILE" ] && L_PRIVMSG="	(to install the contents of '$PUB_ID_FILE' anyway, look at the -f option)"
      printf "\\n%s: ERROR: failed to open ID file '%s': %s\\n" "$0" "$f" "$(printf '%s\n%s\n' "$ErrMSG" "$L_PRIVMSG" | sed -e 's/.*: *//')"
      exit 1
    }
  done
  printf '%s: INFO: Source of key(s) to be installed: "%s"\n' "$0" "$PUB_ID_FILE" >&2
  GET_ID="cat \"$PUB_ID_FILE\""
}

if [ -n "$SSH_AUTH_SOCK" ] && ssh-add -L >/dev/null 2>&1 ; then
  GET_ID="ssh-add -L"
fi

while getopts "i:o:p:F:fnsh?" OPT
do
  case "$OPT" in
    i)
      [ "${SEEN_OPT_I}" ] && {
        printf '\n%s: ERROR: -i option must not be specified more than once\n\n' "$0"
        usage
      }
      SEEN_OPT_I="yes"
      use_id_file "${OPTARG:-$DEFAULT_PUB_ID_FILE}"
      ;;
    o|p|F)
      SSH_OPTS="${SSH_OPTS:+$SSH_OPTS }-$OPT '$(quote "${OPTARG}")'"
      ;;
    f)
      FORCED=1
      ;;
    n)
      DRY_RUN=1
      ;;
    s)
      SFTP=sftp
      ;;
    h|\?)
      usage
      ;;
  esac
done 
#shift all args to keep only USER_HOST
shift $((OPTIND-1))

if [ $# = 0 ] ; then
  usage
fi
if [ $# != 1 ] ; then
  printf '%s: ERROR: Too many arguments.  Expecting a target hostname, got: %s\n\n' "$0" "$SAVEARGS" >&2
  usage
fi

# drop trailing colon
USER_HOST="$*"
# tack the hostname onto SSH_OPTS
SSH_OPTS="${SSH_OPTS:+$SSH_OPTS }'$(quote "$USER_HOST")'"
# and populate "$@" for later use (only way to get proper quoting of options)
eval set -- "$SSH_OPTS"

# shellcheck disable=SC2086
if [ -z "$(eval $GET_ID)" ] && [ -r "${PUB_ID_FILE:=$DEFAULT_PUB_ID_FILE}" ] ; then
  use_id_file "$PUB_ID_FILE"
fi

# shellcheck disable=SC2086
if [ -z "$(eval $GET_ID)" ] ; then
  printf '%s: ERROR: No identities found\n' "$0" >&2
  exit 1
fi

# filter_ids()
# tries to log in using the keys piped to it, and filters out any that work
filter_ids() {
  L_SUCCESS="$1"
  L_TMP_ID_FILE="$SCRATCH_DIR"/popids_tmp_id
  L_OUTPUT_FILE="$SCRATCH_DIR"/popids_output

# repopulate "$@" inside this function
  eval set -- "$SSH_OPTS"

while read -r ID || [ "$ID" ] ; do
    printf '%s\n' "$ID" > "$L_TMP_ID_FILE"

# the next line assumes $PRIV_ID_FILE only set if using a single id file - this
    # assumption will break if we implement the possibility of multiple -i options.
    # The point being that if file based, ssh needs the private key, which it cannot
    # find if only given the contents of the .pub file in an unrelated tmpfile
    $SSH -i "${PRIV_ID_FILE:-$L_TMP_ID_FILE}" \
      -o ControlPath=none \
      -o LogLevel=INFO \
      -o PreferredAuthentications=publickey \
      -o IdentitiesOnly=yes "$@" exit >"$L_OUTPUT_FILE" 2>&1 </dev/null
    if [ "$?" = "$L_SUCCESS" ] || {
         [ "$SFTP" ] && grep 'allows sftp connections only' "$L_OUTPUT_FILE" >/dev/null
         # this error counts as a success if we're setting up an sftp connection
       }
    then
      : > "$L_TMP_ID_FILE"
    else
      grep 'Permission denied' "$L_OUTPUT_FILE" >/dev/null || {
        sed -e 's/^/ERROR: /' <"$L_OUTPUT_FILE" >"$L_TMP_ID_FILE"
        cat >/dev/null #consume the other keys, causing loop to end
      }
    fi

cat "$L_TMP_ID_FILE"
  done
}

# populate_new_ids() uses several global variables ($USER_HOST, $SSH_OPTS ...)
# and has the side effect of setting $NEW_IDS
populate_new_ids() {
  if [ "$FORCED" ] ; then
    # shellcheck disable=SC2086
    NEW_IDS=$(eval $GET_ID)
    return
  fi

printf '%s: INFO: attempting to log in with the new key(s), to filter out any that are already installed\n' "$0" >&2
  # shellcheck disable=SC2086
  NEW_IDS=$(eval $GET_ID | filter_ids $1)

if expr "$NEW_IDS" : "^ERROR: " >/dev/null ; then
    printf '\n%s: %s\n\n' "$0" "$NEW_IDS" >&2
    exit 1
  fi
  if [ -z "$NEW_IDS" ] ; then
    printf '\n%s: WARNING: All keys were skipped because they already exist on the remote system.\n' "$0" >&2
    printf '\t\t(if you think this is a mistake, you may want to use -f option)\n\n' >&2
    exit 0
  fi
  printf '%s: INFO: %d key(s) remain to be installed -- if you are prompted now it is to install the new keys\n' "$0" "$(printf '%s\n' "$NEW_IDS" | wc -l)" >&2
}

# installkey_sh [target_path]
#    produce a one-liner to add the keys to remote authorized_keys file
#    optionally takes an alternative path for authorized_keys
installkeys_sh() {
  AUTH_KEY_FILE=${1:-.ssh/authorized_keys}
  AUTH_KEY_DIR=$(dirname "${AUTH_KEY_FILE}")

# In setting INSTALLKEYS_SH:
  #    the tr puts it all on one line (to placate tcsh)
  #      (hence the excessive use of semi-colons (;) )
  # then in the command:
  #    cd to be at $HOME, just in case;
  #    the -z `tail ...` checks for a trailing newline. The echo adds one if was missing
  #    the cat adds the keys we're getting via STDIN
  #    and if available restorecon is used to restore the SELinux context
  INSTALLKEYS_SH=$(tr '\t\n' ' ' <<-EOF
	cd;
	umask 077;
	mkdir -p "${AUTH_KEY_DIR}" &&
		{ [ -z \`tail -1c ${AUTH_KEY_FILE} 2>/dev/null\` ] ||
			echo >> "${AUTH_KEY_FILE}" || exit 1; } &&
		cat >> "${AUTH_KEY_FILE}" || exit 1;
	if type restorecon >/dev/null 2>&1; then
		restorecon -F "${AUTH_KEY_DIR}" "${AUTH_KEY_FILE}";
	fi
	EOF
  )

# to defend against quirky remote shells: use 'exec sh -c' to get POSIX;
  printf "exec sh -c '%s'" "${INSTALLKEYS_SH}"
}

#shellcheck disable=SC2120 # the 'eval set' confuses this
installkeys_via_sftp() {

# repopulate "$@" inside this function
  eval set -- "$SSH_OPTS"

L_KEYS=$SCRATCH_DIR/authorized_keys
  L_SHARED_CON=$SCRATCH_DIR/master-conn
  $SSH -f -N -M -S "$L_SHARED_CON" "$@"
  L_CLEANUP="$SSH -S $L_SHARED_CON -O exit 'ignored' >/dev/null 2>&1 ; $SCRATCH_CLEANUP"
  #shellcheck disable=SC2064
  trap "$L_CLEANUP" EXIT TERM INT QUIT
  sftp -b - -o "ControlPath=$L_SHARED_CON" "ignored" <<-EOF || return 1
	-get .ssh/authorized_keys $L_KEYS
	EOF
  # add a newline or create file if it's missing, same like above
  [ -z "$(tail -1c "$L_KEYS" 2>/dev/null)" ] || echo >> "$L_KEYS"
  # append the keys being piped in here
  cat >> "$L_KEYS"
  sftp -b - -o "ControlPath=$L_SHARED_CON" "ignored" <<-EOF || return 1
	-mkdir .ssh
	chmod 700 .ssh
	put $L_KEYS .ssh/authorized_keys
	chmod 600 .ssh/authorized_keys
	EOF
  #shellcheck disable=SC2064
  eval "$L_CLEANUP" && trap "$SCRATCH_CLEANUP" EXIT TERM INT QUIT
}

# create a scratch dir for any temporary files needed
if SCRATCH_DIR=$(mktemp -d ~/.ssh/ssh-copy-id.XXXXXXXXXX) &&
    [ "$SCRATCH_DIR" ] && [ -d "$SCRATCH_DIR" ]
then
  chmod 0700 "$SCRATCH_DIR"
  SCRATCH_CLEANUP="rm -rf \"$SCRATCH_DIR\""
  #shellcheck disable=SC2064
  trap "$SCRATCH_CLEANUP" EXIT TERM INT QUIT
else
  printf '%s: ERROR: failed to create required temporary directory under ~/.ssh\n' "$0" >&2
  exit 1
fi

REMOTE_VERSION=$($SSH -v -o PreferredAuthentications=',' -o ControlPath=none "$@" 2>&1 |
                 sed -ne 's/.*remote software version //p')

# shellcheck disable=SC2029
case "$REMOTE_VERSION" in
  NetScreen*)
    populate_new_ids 1
    for KEY in $(printf "%s" "$NEW_IDS" | cut -d' ' -f2) ; do
      KEY_NO=$((KEY_NO + 1))
      printf '%s\n' "$KEY" | grep ssh-dss >/dev/null || {
         printf '%s: WARNING: Non-dsa key (#%d) skipped (NetScreen only supports DSA keys)\n' "$0" "$KEY_NO" >&2
         continue
      }
      [ "$DRY_RUN" ] || printf 'set ssh pka-dsa key %s\nsave\nexit\n' "$KEY" | $SSH -T "$@" >/dev/null 2>&1
      if [ $? = 255 ] ; then
        printf '%s: ERROR: installation of key #%d failed (please report a bug describing what caused this, so that we can make this message useful)\n' "$0" "$KEY_NO" >&2
      else
        ADDED=$((ADDED + 1))
      fi
    done
    if [ -z "$ADDED" ] ; then
      exit 1
    fi
    ;;
  dropbear*)
    populate_new_ids 0
    [ "$DRY_RUN" ] || printf '%s\n' "$NEW_IDS" | \
      $SSH "$@" "$(installkeys_sh /etc/dropbear/authorized_keys)" \
      || exit 1
    ADDED=$(printf '%s\n' "$NEW_IDS" | wc -l)
    ;;
  *)
    # Assuming that the remote host treats ~/.ssh/authorized_keys as one might expect
    populate_new_ids 0
    if ! [ "$DRY_RUN" ] ; then
      printf '%s\n' "$NEW_IDS" | \
        if [ "$SFTP" ] ; then
          #shellcheck disable=SC2119
          installkeys_via_sftp
        else
          $SSH "$@" "$(installkeys_sh)"
        fi || exit 1
    fi
    ADDED=$(printf '%s\n' "$NEW_IDS" | wc -l)
    ;;
esac

if [ "$DRY_RUN" ] ; then
  cat <<-EOF
	=-=-=-=-=-=-=-=
	Would have added the following key(s):

$NEW_IDS
	=-=-=-=-=-=-=-=
	EOF
else
  cat <<-EOF

Number of key(s) added: $ADDED

Now try logging into the machine, with:   "${SFTP:-ssh} $SSH_OPTS"
	and check to make sure that only the key(s) you wanted were added.

EOF
fi

# =-=-=-=

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