晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
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#!/bin/sh -
#
# bashbug - create a bug report and mail it to the bug address
#
# The bug address depends on the release status of the shell. Versions
# with status `devel', `alpha', `beta', or `rc' mail bug reports to
# chet@cwru.edu and, optionally, to bash-testers@cwru.edu.
# Other versions send mail to bug-bash@gnu.org.
#
# Copyright (C) 1996-2004 Free Software Foundation, Inc.
#
# 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, see <http://www.gnu.org/licenses/>.
#
# configuration section:
# these variables are filled in by the make target in Makefile
#
MACHINE="x86_64"
OS="linux-gnu"
CC="gcc"
CFLAGS=" -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-redhat-linux-gnu' -DCONF_VENDOR='redhat' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H -I. -I. -I./include -I./lib -D_GNU_SOURCE -DRECYCLES_PIDS -DDEFAULT_PATH_VALUE='/usr/local/bin:/usr/bin' -DSYSLOG_HISTORY -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -Wno-parentheses -Wno-format-security"
RELEASE="4.4"
PATCHLEVEL="20"
RELSTATUS="release"
MACHTYPE="x86_64-redhat-linux-gnu"
PATH=/bin:/usr/bin:/usr/local/bin:$PATH
export PATH
# Check if TMPDIR is set, default to /tmp
: ${TMPDIR:=/tmp}
#Securely create a temporary directory for the temporary files
TEMPDIR=$TMPDIR/bbug.$$
(umask 077 && mkdir $TEMPDIR) || {
echo "$0: could not create temporary directory" >&2
exit 1
}
TEMPFILE1=$TEMPDIR/bbug1
TEMPFILE2=$TEMPDIR/bbug2
USAGE="Usage: $0 [--help] [--version] [bug-report-email-address]"
VERSTR="GNU bashbug, version ${RELEASE}.${PATCHLEVEL}-${RELSTATUS}"
do_help= do_version=
while [ $# -gt 0 ]; do
case "$1" in
--help) shift ; do_help=y ;;
--version) shift ; do_version=y ;;
--) shift ; break ;;
-*) echo "bashbug: ${1}: invalid option" >&2
echo "$USAGE" >&2
exit 2 ;;
*) break ;;
esac
done
if [ -n "$do_version" ]; then
echo "${VERSTR}"
exit 0
fi
if [ -n "$do_help" ]; then
echo "${VERSTR}"
echo "${USAGE}"
echo
cat << HERE_EOF
Bashbug is used to send mail to the Bash maintainers
for when Bash doesn't behave like you'd like, or expect.
Bashbug will start up your editor (as defined by the shell's
EDITOR environment variable) with a preformatted bug report
template for you to fill in. The report will be mailed to the
bug-bash mailing list by default. See the manual for details.
If you invoke bashbug by accident, just quit your editor without
saving any changes to the template, and no bug report will be sent.
HERE_EOF
exit 0
fi
# Figure out how to echo a string without a trailing newline
N=`echo 'hi there\c'`
case "$N" in
*c) n=-n c= ;;
*) n= c='\c' ;;
esac
BASHTESTERS="bash-testers@cwru.edu"
case "$RELSTATUS" in
alpha*|beta*|devel*|rc*) BUGBASH=chet@cwru.edu ;;
*) BUGBASH=bug-bash@gnu.org ;;
esac
case "$RELSTATUS" in
alpha*|beta*|devel*|rc*)
echo "$0: This is a testing release. Would you like your bug report"
echo "$0: to be sent to the bash-testers mailing list?"
echo $n "$0: Send to bash-testers? $c"
read ans
case "$ans" in
y*|Y*) BUGBASH="${BUGBASH},${BASHTESTERS}" ;;
esac ;;
esac
BUGADDR="${1-$BUGBASH}"
if [ -z "$DEFEDITOR" ] && [ -z "$EDITOR" ]; then
if [ -x /usr/bin/editor ]; then
DEFEDITOR=editor
elif [ -x /usr/local/bin/ce ]; then
DEFEDITOR=ce
elif [ -x /usr/local/bin/emacs ]; then
DEFEDITOR=emacs
elif [ -x /usr/contrib/bin/emacs ]; then
DEFEDITOR=emacs
elif [ -x /usr/bin/emacs ]; then
DEFEDITOR=emacs
elif [ -x /usr/bin/xemacs ]; then
DEFEDITOR=xemacs
elif [ -x /usr/contrib/bin/jove ]; then
DEFEDITOR=jove
elif [ -x /usr/local/bin/jove ]; then
DEFEDITOR=jove
elif [ -x /usr/bin/vi ]; then
DEFEDITOR=vi
else
echo "$0: No default editor found: attempting to use vi" >&2
DEFEDITOR=vi
fi
fi
: ${EDITOR=$DEFEDITOR}
: ${USER=${LOGNAME-`whoami`}}
trap 'rm -rf "$TEMPDIR"; exit 1' 1 2 3 13 15
trap 'rm -rf "$TEMPDIR"' 0
UN=
if (uname) >/dev/null 2>&1; then
UN=`uname -a`
fi
if [ -f /usr/lib/sendmail ] ; then
RMAIL="/usr/lib/sendmail"
SMARGS="-i -t"
elif [ -f /usr/sbin/sendmail ] ; then
RMAIL="/usr/sbin/sendmail"
SMARGS="-i -t"
else
RMAIL=rmail
SMARGS="$BUGADDR"
fi
INITIAL_SUBJECT='[50 character or so descriptive subject here (for reference)]'
cat > "$TEMPFILE1" <<EOF
From: ${USER}
To: ${BUGADDR}
Subject: ${INITIAL_SUBJECT}
Configuration Information [Automatically generated, do not change]:
Machine: $MACHINE
OS: $OS
Compiler: $CC
Compilation CFLAGS: $CFLAGS
uname output: $UN
Machine Type: $MACHTYPE
Bash Version: $RELEASE
Patch Level: $PATCHLEVEL
Release Status: $RELSTATUS
Description:
[Detailed description of the problem, suggestion, or complaint.]
Repeat-By:
[Describe the sequence of events that causes the problem
to occur.]
Fix:
[Description of how to fix the problem. If you don't know a
fix for the problem, don't include this section.]
EOF
cp "$TEMPFILE1" "$TEMPFILE2"
chmod u+w "$TEMPFILE1"
trap '' 2 # ignore interrupts while in editor
edstat=1
while [ $edstat -ne 0 ]; do
$EDITOR "$TEMPFILE1"
edstat=$?
if [ $edstat -ne 0 ]; then
echo "$0: editor \`$EDITOR' exited with nonzero status."
echo "$0: Perhaps it was interrupted."
echo "$0: Type \`y' to give up, and lose your bug report;"
echo "$0: type \`n' to re-enter the editor."
echo $n "$0: Do you want to give up? $c"
read ans
case "$ans" in
[Yy]*) exit 1 ;;
esac
continue
fi
# find the subject from the temp file and see if it's been changed
CURR_SUB=`grep '^Subject: ' "$TEMPFILE1" | sed 's|^Subject:[ ]*||' | sed 1q`
case "$CURR_SUB" in
"${INITIAL_SUBJECT}")
echo
echo "$0: You have not changed the subject from the default."
echo "$0: Please use a more descriptive subject header."
echo "$0: Type \`y' to give up, and lose your bug report;"
echo "$0: type \`n' to re-enter the editor."
echo $n "$0: Do you want to give up? $c"
read ans
case "$ans" in
[Yy]*) exit 1 ;;
esac
echo "$0: The editor will be restarted in five seconds."
sleep 5
edstat=1
;;
esac
done
trap 'rm -rf "$TEMPDIR"; exit 1' 2 # restore trap on SIGINT
if cmp -s "$TEMPFILE1" "$TEMPFILE2"
then
echo "File not changed, no bug report submitted."
exit
fi
echo $n "Send bug report to ${BUGADDR}? [y/n] $c"
read ans
case "$ans" in
[Nn]*) exit 0 ;;
esac
${RMAIL} $SMARGS < "$TEMPFILE1" || {
cat "$TEMPFILE1" >> $HOME/dead.bashbug
echo "$0: mail to ${BUGADDR} failed: report saved in $HOME/dead.bashbug" >&2
echo "$0: please send it manually to ${BUGADDR}" >&2
}
exit 0