File Manager

XYZ File Manager

Current Path: /usr/bin

📁 ..
📁 X11
📄 [(66.89 KB)
📄 ab(58.42 KB)
📄 addpart(30.31 KB)
📄 apt(18.31 KB)
📄 apt-cache(86.38 KB)
📄 apt-cdrom(22.38 KB)
📄 apt-config(26.31 KB)
📄 apt-get(50.38 KB)
📄 apt-key(27.32 KB)
📄 apt-mark(58.38 KB)
📄 arch(42.86 KB)
📄 awk(154.66 KB)
📄 b2sum(58.98 KB)
📄 base32(46.89 KB)
📄 base64(46.89 KB)
📄 basename(42.83 KB)
📄 basenc(54.89 KB)
📄 bash(1.21 MB)
📄 bashbug(6.7 KB)
📄 bdftopcf(42.45 KB)
📄 bdftruncate(10.22 KB)
📄 busctl(90.5 KB)
📄 c_rehash(6.68 KB)
📄 captoinfo(90.34 KB)
📄 cat(42.98 KB)
📄 certbot(958 B)
📄 chage(78.49 KB)
📄 chardet(221 B)
📄 chardetect(221 B)
📄 chattr(14.24 KB)
📄 chcon(67.11 KB)
📄 checkgid(14.23 KB)
📄 chfn(61.2 KB)
📄 chgrp(67.05 KB)
📄 chmod(62.98 KB)
📄 choom(54.31 KB)
📄 chown(71.05 KB)
📄 chrt(66.31 KB)
📄 chsh(51.64 KB)
📄 cksum(139.05 KB)
📄 clear(14.24 KB)
📄 clear_console(14.15 KB)
📄 cmp(50.95 KB)
📄 comm(46.92 KB)
📄 corelist(15.01 KB)
📄 cp(147.61 KB)
📄 cpan(8.16 KB)
📄 cpan5.36-x86_64-linux-gnu(8.18 KB)
📄 csplit(119.17 KB)
📄 ctstat(26.59 KB)
📄 cut(46.98 KB)
📄 dash(122.7 KB)
📄 date(119.05 KB)
📄 dbus-cleanup-sockets(14.22 KB)
📄 dbus-daemon(238.56 KB)
📄 dbus-monitor(26.23 KB)
📄 dbus-run-session(14.23 KB)
📄 dbus-send(30.22 KB)
📄 dbus-update-activation-environment(14.22 KB)
📄 dbus-uuidgen(14.22 KB)
📄 dd(87.15 KB)
📄 deb-systemd-helper(23.79 KB)
📄 deb-systemd-invoke(6.09 KB)
📄 debconf(2.79 KB)
📄 debconf-apt-progress(11.27 KB)
📄 debconf-communicate(608 B)
📄 debconf-copydb(1.68 KB)
📄 debconf-escape(647 B)
📄 debconf-set-selections(2.92 KB)
📄 debconf-show(1.78 KB)
📄 delpart(30.31 KB)
📄 df(99.8 KB)
📄 dialog(247.85 KB)
📄 diff(151.58 KB)
📄 diff3(67.14 KB)
📄 dir(147.8 KB)
📄 dircolors(50.92 KB)
📄 dirname(38.83 KB)
📄 dmesg(86.58 KB)
📄 dnsdomainname(22.15 KB)
📄 domainname(22.15 KB)
📄 dpkg(310.64 KB)
📄 dpkg-deb(166.52 KB)
📄 dpkg-divert(154.55 KB)
📄 dpkg-maintscript-helper(20.71 KB)
📄 dpkg-query(158.58 KB)
📄 dpkg-realpath(4.09 KB)
📄 dpkg-split(126.48 KB)
📄 dpkg-statoverride(62.33 KB)
📄 dpkg-trigger(86.48 KB)
📄 du(171.33 KB)
📄 dvipdf(1007 B)
📄 echo(42.83 KB)
📄 editor(3.48 MB)
📄 egrep(41 B)
📄 enc2xs(40.96 KB)
📄 encguess(3 KB)
📄 env(47.4 KB)
📄 eps2eps(639 B)
📄 ex(3.48 MB)
📄 expand(42.92 KB)
📄 expiry(30.45 KB)
📄 expr(115.05 KB)
📄 factor(83.2 KB)
📄 faillog(22.53 KB)
📄 fallocate(34.31 KB)
📄 false(34.83 KB)
📄 fcgistarter(14.23 KB)
📄 fgrep(41 B)
📄 fincore(34.36 KB)
📄 find(219.58 KB)
📄 findmnt(83.59 KB)
📄 flock(34.39 KB)
📄 fmt(46.89 KB)
📄 fold(42.89 KB)
📄 fonttosfnt(34.41 KB)
📄 free(26.3 KB)
📄 fuser(39.83 KB)
📄 getconf(26.5 KB)
📄 getent(35.47 KB)
📄 getopt(34.31 KB)
📄 ghostscript(14.23 KB)
📄 gpasswd(86.42 KB)
📄 gpgv(463 KB)
📄 grep(198.39 KB)
📄 groups(42.89 KB)
📄 gs(14.23 KB)
📄 gsbj(350 B)
📄 gsdj(352 B)
📄 gsdj500(352 B)
📄 gslj(353 B)
📄 gslp(350 B)
📄 gsnd(277 B)
📄 gunzip(2.29 KB)
📄 gzexe(6.3 KB)
📄 gzip(95.84 KB)
📄 h2ph(28.54 KB)
📄 h2xs(59.51 KB)
📄 hardlink(50.39 KB)
📄 head(46.95 KB)
📄 helpztags(2.46 KB)
📄 hostid(38.83 KB)
📄 hostname(22.15 KB)
📄 hostnamectl(30.38 KB)
📄 htcacheclean(34.24 KB)
📄 htdbm(26.23 KB)
📄 htdigest(14.23 KB)
📄 htpasswd(26.23 KB)
📄 i386(26.58 KB)
📄 iconv(63.13 KB)
📄 id(47.02 KB)
📄 infocmp(62.31 KB)
📄 infotocap(90.34 KB)
📄 install(155.8 KB)
📄 instmodsh(4.27 KB)
📄 ionice(34.31 KB)
📄 ip(674.82 KB)
📄 ipcmk(34.38 KB)
📄 ipcrm(34.31 KB)
📄 ipcs(74.31 KB)
📄 ischroot(14.32 KB)
📄 join(54.98 KB)
📄 journalctl(74.64 KB)
📄 json_pp(4.88 KB)
📄 kernel-install(12.75 KB)
📄 kill(22.3 KB)
📄 killall(31.95 KB)
📄 last(50.31 KB)
📄 lastb(50.31 KB)
📄 lastlog(31.75 KB)
📄 lcf(7.6 KB)
📄 ld.so(205.96 KB)
📄 ldd(5.28 KB)
📄 letsencrypt(958 B)
📄 libnetcfg(15.41 KB)
📄 link(38.83 KB)
📄 linux32(26.58 KB)
📄 linux64(26.58 KB)
📄 ln(71.12 KB)
📄 lnstat(26.59 KB)
📄 locale(46.16 KB)
📄 localectl(26.38 KB)
📄 localedef(291.91 KB)
📄 logger(54.9 KB)
📄 login(51.78 KB)
📄 loginctl(58.48 KB)
📄 logname(38.83 KB)
📄 logresolve(14.24 KB)
📄 ls(147.8 KB)
📄 lsattr(14.24 KB)
📄 lsb_release(2.59 KB)
📄 lsblk(202.31 KB)
📄 lscpu(126.31 KB)
📄 lsfd(120.3 KB)
📄 lsipc(98.31 KB)
📄 lsirq(34.48 KB)
📄 lslocks(70.7 KB)
📄 lslogins(94.31 KB)
📄 lsmem(66.31 KB)
📄 lsns(82.31 KB)
📄 mawk(154.66 KB)
📄 mcookie(34.38 KB)
📄 md5sum(50.95 KB)
📄 md5sum.textutils(50.95 KB)
📄 mesg(18.3 KB)
📄 mkdir(95.27 KB)
📄 mkfifo(67.17 KB)
📄 mkfontdir(65 B)
📄 mkfontscale(39.05 KB)
📄 mknod(71.2 KB)
📄 mktemp(42.92 KB)
📄 more(58.31 KB)
📄 mount(58.3 KB)
📄 mountpoint(18.3 KB)
📄 mv(139.62 KB)
📄 namei(34.31 KB)
📄 nawk(154.66 KB)
📄 netstat(151.66 KB)
📄 networkctl(106.38 KB)
📄 newgrp(47.75 KB)
📄 nice(42.86 KB)
📄 nisdomainname(22.15 KB)
📄 nl(111.11 KB)
📄 nohup(42.89 KB)
📄 normalizer(244 B)
📄 nproc(42.89 KB)
📄 nsenter(34.54 KB)
📄 nstat(104.45 KB)
📄 numfmt(67.02 KB)
📄 od(79.02 KB)
📄 openssl(953.26 KB)
📄 pager(58.31 KB)
📄 paperconf(14.34 KB)
📄 partx(118.31 KB)
📄 passwd(66.65 KB)
📄 paste(42.89 KB)
📄 pathchk(42.86 KB)
📄 pdb3(62.4 KB)
📄 pdb3.11(62.4 KB)
📄 pdf2dsc(698 B)
📄 pdf2ps(909 B)
📄 peekfd(14.5 KB)
📄 perl(3.63 MB)
📄 perl5.36-x86_64-linux-gnu(14.41 KB)
📄 perl5.36.0(3.63 MB)
📄 perlbug(44.12 KB)
📄 perldoc(125 B)
📄 perlivp(10.61 KB)
📄 perlthanks(44.12 KB)
📄 pf2afm(498 B)
📄 pfbtopfa(516 B)
📄 pgrep(34.42 KB)
📄 phar(14.88 KB)
📄 phar.phar(14.88 KB)
📄 phar.phar8.2(14.88 KB)
📄 phar8.2(14.88 KB)
📄 phar8.2.phar(14.88 KB)
📄 php(5.4 MB)
📄 php8.2(5.4 MB)
📄 piconv(8.16 KB)
📄 pidof(26.31 KB)
📄 pidwait(34.42 KB)
📄 pinky(47.05 KB)
📄 pkill(34.42 KB)
📄 pl2pm(4.43 KB)
📄 pldd(22.69 KB)
📄 pmap(34.34 KB)
📄 pod2html(4.04 KB)
📄 pod2man(14.68 KB)
📄 pod2text(10.55 KB)
📄 pod2usage(4.01 KB)
📄 podchecker(3.57 KB)
📄 pphs(404 B)
📄 pr(79.11 KB)
📄 printafm(395 B)
📄 printenv(34.83 KB)
📄 printf(62.92 KB)
📄 prlimit(38.83 KB)
📄 prove(13.34 KB)
📄 prtstat(18.57 KB)
📄 ps(142.93 KB)
📄 ps2ascii(631 B)
📄 ps2epsi(1.23 KB)
📄 ps2pdf(272 B)
📄 ps2pdf12(215 B)
📄 ps2pdf13(215 B)
📄 ps2pdf14(215 B)
📄 ps2pdfwr(1.05 KB)
📄 ps2ps(647 B)
📄 ps2ps2(669 B)
📄 ps2txt(631 B)
📄 pslog(14.45 KB)
📄 pstree(35.78 KB)
📄 pstree.x11(35.78 KB)
📄 ptar(3.48 KB)
📄 ptardiff(2.58 KB)
📄 ptargrep(4.29 KB)
📄 ptx(135.23 KB)
📄 pwd(42.92 KB)
📄 pwdx(14.3 KB)
📄 py3clean(7.63 KB)
📄 py3compile(13 KB)
📄 py3versions(12.52 KB)
📄 pydoc3(79 B)
📄 pydoc3.11(79 B)
📄 pygettext3(23.67 KB)
📄 pygettext3.11(23.67 KB)
📄 python3(6.52 MB)
📄 python3.11(6.52 MB)
📄 rbash(1.21 MB)
📄 rdma(180.6 KB)
📄 readlink(50.89 KB)
📄 realpath(50.92 KB)
📄 rename.ul(22.3 KB)
📄 renice(14.3 KB)
📄 reset(30.24 KB)
📄 resizepart(70.31 KB)
📄 rev(14.3 KB)
📄 rgrep(30 B)
📄 rm(71.05 KB)
📄 rmdir(54.92 KB)
📄 rotatelogs(26.31 KB)
📄 routel(1.62 KB)
📄 rtstat(26.59 KB)
📄 run-parts(26.91 KB)
📄 runcon(42.95 KB)
📄 rview(3.48 MB)
📄 rvim(3.48 MB)
📄 savelog(10.24 KB)
📄 scp(266.63 KB)
📄 script(70.3 KB)
📄 scriptlive(54.3 KB)
📄 scriptreplay(46.3 KB)
📄 sdiff(55.08 KB)
📄 sed(123.46 KB)
📄 select-editor(2.39 KB)
📄 sensible-browser(1.26 KB)
📄 sensible-editor(1.24 KB)
📄 sensible-pager(565 B)
📄 seq(58.92 KB)
📄 setarch(26.58 KB)
📄 setpriv(78.31 KB)
📄 setsid(14.3 KB)
📄 setterm(46.31 KB)
📄 sftp(282.59 KB)
📄 sg(47.75 KB)
📄 sh(122.7 KB)
📄 sha1sum(54.95 KB)
📄 sha224sum(58.95 KB)
📄 sha256sum(58.95 KB)
📄 sha384sum(62.95 KB)
📄 sha512sum(62.95 KB)
📄 shasum(9.75 KB)
📄 shred(63.14 KB)
📄 shuf(58.98 KB)
📄 skill(30.33 KB)
📄 slabtop(22.37 KB)
📄 sleep(42.86 KB)
📄 slogin(1.07 MB)
📄 snice(30.33 KB)
📄 sort(115.68 KB)
📄 splain(18.99 KB)
📄 split(59.55 KB)
📄 ss(189.14 KB)
📄 ssh(1.07 MB)
📄 ssh-add(518.44 KB)
📄 ssh-agent(474.38 KB)
📄 ssh-argv0(1.42 KB)
📄 ssh-copy-id(12.38 KB)
📄 ssh-keygen(646.44 KB)
📄 ssh-keyscan(622.47 KB)
📄 stat(95.2 KB)
📄 stdbuf(58.92 KB)
📄 streamzip(7.75 KB)
📄 stty(83.02 KB)
📄 su(70.31 KB)
📄 sum(50.96 KB)
📄 sync(38.89 KB)
📄 systemctl(1.29 MB)
📄 systemd(90.38 KB)
📄 systemd-analyze(182.61 KB)
📄 systemd-ask-password(18.48 KB)
📄 systemd-cat(18.38 KB)
📄 systemd-cgls(22.48 KB)
📄 systemd-cgtop(38.4 KB)
📄 systemd-creds(42.61 KB)
📄 systemd-cryptenroll(58.6 KB)
📄 systemd-delta(26.38 KB)
📄 systemd-detect-virt(18.37 KB)
📄 systemd-escape(18.37 KB)
📄 systemd-firstboot(50.59 KB)
📄 systemd-id128(22.37 KB)
📄 systemd-inhibit(22.39 KB)
📄 systemd-machine-id-setup(18.48 KB)
📄 systemd-mount(50.59 KB)
📄 systemd-notify(18.38 KB)
📄 systemd-path(18.37 KB)
📄 systemd-repart(150.69 KB)
📄 systemd-run(58.57 KB)
📄 systemd-socket-activate(26.38 KB)
📄 systemd-stdio-bridge(18.38 KB)
📄 systemd-sysext(42.49 KB)
📄 systemd-sysusers(62.68 KB)
📄 systemd-tmpfiles(110.57 KB)
📄 systemd-tty-ask-password-agent(34.38 KB)
📄 systemd-umount(50.59 KB)
📄 tabs(18.23 KB)
📄 tac(111.05 KB)
📄 tail(75.14 KB)
📄 tar(519.52 KB)
📄 taskset(62.31 KB)
📄 tee(42.95 KB)
📄 tempfile(14.18 KB)
📄 test(58.89 KB)
📄 tic(90.34 KB)
📄 timedatectl(42.37 KB)
📄 timeout(47.49 KB)
📄 tload(18.32 KB)
📄 toe(22.23 KB)
📄 top(131.58 KB)
📄 touch(107.05 KB)
📄 tput(26.27 KB)
📄 tr(54.89 KB)
📄 true(34.83 KB)
📄 truncate(42.89 KB)
📄 tset(30.24 KB)
📄 tsort(54.89 KB)
📄 tty(34.86 KB)
📄 tzselect(14.99 KB)
📄 ucf(40.69 KB)
📄 ucfq(18.91 KB)
📄 ucfr(10.85 KB)
📄 uclampset(62.31 KB)
📄 ucs2any(18.32 KB)
📄 umount(34.3 KB)
📄 uname(42.86 KB)
📄 uncompress(2.29 KB)
📄 unexpand(42.92 KB)
📄 uniq(46.95 KB)
📄 unlink(38.83 KB)
📄 unshare(82.54 KB)
📄 update-alternatives(58.31 KB)
📄 update-mime-database(59.27 KB)
📄 uptime(14.3 KB)
📄 users(38.89 KB)
📄 utmpdump(30.3 KB)
📄 vdir(147.8 KB)
📄 vi(3.48 MB)
📄 view(3.48 MB)
📄 vim(3.48 MB)
📄 vim.basic(3.48 MB)
📄 vimdiff(3.48 MB)
📄 vimtutor(2.1 KB)
📄 vmstat(34.72 KB)
📄 w(22.3 KB)
📄 wall(38.3 KB)
📄 watch(26.71 KB)
📄 wc(51.05 KB)
📄 wdctl(70.34 KB)
📄 wget(527.36 KB)
📄 whereis(30.77 KB)
📄 which(946 B)
📄 which.debianutils(946 B)
📄 who(59.02 KB)
📄 whoami(38.86 KB)
📄 x86_64(26.58 KB)
📄 xargs(70.45 KB)
📄 xdg-user-dir(234 B)
📄 xdg-user-dirs-update(26.16 KB)
📄 xsubpp(5.05 KB)
📄 xxd(18.21 KB)
📄 yes(38.83 KB)
📄 ypdomainname(22.15 KB)
📄 zcat(1.94 KB)
📄 zcmp(1.64 KB)
📄 zdiff(6.31 KB)
📄 zdump(22.52 KB)
📄 zegrep(29 B)
📄 zfgrep(29 B)
📄 zforce(2.03 KB)
📄 zgrep(7.91 KB)
📄 zipdetails(68.55 KB)
📄 zless(2.15 KB)
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📄 znew(4.47 KB)

Editing: ssh-copy-id

#!/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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