Critics have remarked that those four worthies were truly peerless throughout the ages; yet the present falls short of the past—the ancients favored unadorned simplicity, whereas the moderns prefer refined elegance. Styles of substance and ornament rise and fall in succession, shifting with the changing mores of the times; such evolution is simply the natural order of things. The ideal lies in honoring antiquity without clashing with the present, and embracing modernity without succumbing to its flaws—embodying that perfect balance of substance and refinement that defines the true gentleman. There is surely no need to abandon a carved palace in favor of a cave dwelling, or to trade a jade carriage for a primitive cart with solid wooden wheels.🌌 SpectraShell

🌌 SpectraShell

Current path: usr/bin/


⬆️ Go up: /usr

📄 Viewing: zdiff

#!/bin/sh
# sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh

# Copyright (C) 1998, 2002, 2006-2007, 2009-2018 Free Software Foundation, Inc.
# Copyright (C) 1993 Jean-loup Gailly

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

case $1 in
  --__cmp) shift
        prog=cmp;  cmp='${CMP-cmp}'  ;;
  *)    prog=diff; cmp='${DIFF-diff}';;
esac

version="z$prog (gzip) 1.9
Copyright (C) 2009, 2011-2017 Free Software Foundation, Inc.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by Jean-loup Gailly."

usage="Usage: $0 [OPTION]... FILE1 [FILE2]
Compare FILE1 to FILE2, using their uncompressed contents if they are
compressed.  If FILE2 is omitted, compare FILE1 to the uncompressed
contents of FILE1.gz.  Do comparisons like '$prog' does.

OPTIONs are the same as for '$prog'.

Report bugs to <bug-gzip@gnu.org>."

# sed script to escape all ' for the shell, and then (to handle trailing
# newlines correctly) turn trailing X on last line into '.
escape='
  s/'\''/'\''\\'\'''\''/g
  $s/X$/'\''/
'

while :; do
  case $1 in
  --h*) printf '%s\n' "$usage"   || exit 2; exit;;
  --v*) printf '%s\n' "$version" || exit 2; exit;;
  --) shift; break;;
  -*\'*) cmp="$cmp '"`printf '%sX\n' "$1" | sed "$escape"`;;
  -?*) cmp="$cmp '$1'";;
  *) break;;
  esac
  shift
done
cmp="$cmp --"

for file
do
  test "X$file" = X- || <"$file" || exit 2
done

gzip_status=0
exec 3>&1

if test $# -eq 1; then
  case $1 in
  *[-.]gz* | *[-.][zZ] | *.t[ga]z)
    FILE=`expr "X$1" : 'X\(.*\)[-.][zZtga]*$'`
    gzip_status=$(
      exec 4>&1
      (gzip -cd -- "$1" 4>&-; echo $? >&4) 3>&- | eval "$cmp" - '"$FILE"' >&3
    );;
  *)
    printf >&2 '%s\n' "$0: $1: unknown compressed file extension"
    exit 2;;
  esac
elif test $# -eq 2; then
        case "$1" in
        *[-.]gz* | *[-.][zZ] | *.t[ga]z | -)
                case "$2" in
                *[-.]gz* | *[-.][zZ] | *.t[ga]z | -)
                    if test "$1$2" = --; then
                        gzip_status=$(
                          exec 4>&1
                          (gzip -cdfq - 4>&-; echo $? >&4) 3>&- |
                            eval "$cmp" - - >&3
                        )
                    elif
                        # Reject Solaris 8's buggy /bin/bash 2.03.
                        echo X |
                         (echo X | eval "$cmp" /dev/fd/5 - >/dev/null 2>&1) \
                                5<&0
                    then
                        gzip_status=$(
                          exec 4>&1
                          (gzip -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
                            ( (gzip -cdfq -- "$2" 4>&-; echo $? >&4) 3>&- 5<&- </dev/null |
                               eval "$cmp" /dev/fd/5 - >&3) 5<&0
                        )
                        cmp_status=$?
                        case $gzip_status in
                          *[1-9]*) gzip_status=1;;
                          *) gzip_status=0;;
                        esac
                        (exit $cmp_status)
                    else
                        tmp=
                        trap '
                          test -n "$tmp" && rm -f "$tmp"
                          (exit 2); exit 2
                        ' HUP INT PIPE TERM 0
                        case $TMPDIR in
                          / | /*/) ;;
                          /*) TMPDIR=$TMPDIR/;;
                          *) TMPDIR=/tmp/;;
                        esac
                        if type mktemp >/dev/null 2>&1; then
                          tmp=`mktemp "${TMPDIR}zdiffXXXXXXXXX"` ||
                            exit 2
                        else
                          set -C
                          tmp=${TMPDIR}zdiff$$
                        fi
                        gzip -cdfq -- "$2" > "$tmp" || exit 2
                        gzip_status=$(
                          exec 4>&1
                          (gzip -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
                            eval "$cmp" - '"$tmp"' >&3
                        )
                        cmp_status=$?
                        rm -f "$tmp" || gzip_status=$?
                        trap - HUP INT PIPE TERM 0
                        (exit $cmp_status)
                    fi;;
                *)
                    gzip_status=$(
                      exec 4>&1
                      (gzip -cdfq -- "$1" 4>&-; echo $? >&4) 3>&- |
                        eval "$cmp" - '"$2"' >&3
                    );;
                esac;;
        *)      case "$2" in
                *[-.]gz* | *[-.][zZ] | *.t[ga]z | -)
                        gzip_status=$(
                          exec 4>&1
                          (gzip -cdfq -- "$2" 4>&-; echo $? >&4) 3>&- |
                            eval "$cmp" '"$1"' - >&3
                        );;
                *)	eval "$cmp" '"$1"' '"$2"';;
                esac;;
        esac
else
        printf >&2 '%s\n' \
          "$0: invalid number of operands; try \`$0 --help' for help"
        exit 2
fi

cmp_status=$?
test "$gzip_status" -eq 0 || exit 2
exit $cmp_status

📁