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
#set -vx
LCFILE=/etc/pki/ca-trust/ca-legacy.conf
LLINK=/etc/pki/ca-trust/source/ca-bundle.legacy.crt
LDEFAULT=/usr/share/pki/ca-trust-legacy/ca-bundle.legacy.default.crt
LDISABLE=/usr/share/pki/ca-trust-legacy/ca-bundle.legacy.disable.crt
# An absent value, or any unexpected value, is treated as "default".
is_disabled()
{
grep -i "^legacy *= *disable *$" $LCFILE >/dev/null 2>&1
}
do_check()
{
is_disabled
if [ $? -eq 0 ]; then
echo "Legacy CAs are set to DISABLED in file $LCFILE (affects install/upgrade)"
LEXPECT=$LDISABLE
else
echo "Legacy CAs are set to DEFAULT in file $LCFILE (affects install/upgrade)"
LEXPECT=$LDEFAULT
fi
echo "Status of symbolic link $LLINK:"
readlink -v $LLINK
}
do_install()
{
is_disabled
if [ $? -eq 0 ]; then
# found, legacy is disabled
ln -sf $LDISABLE $LLINK
else
# expression not found, legacy is set to default
ln -sf $LDEFAULT $LLINK
fi
}
do_default()
{
sed -i 's/^legacy *=.*$/legacy=default/' $LCFILE
do_install
/usr/bin/update-ca-trust
}
do_disable()
{
sed -i 's/^legacy *=.*$/legacy=disable/' $LCFILE
do_install
/usr/bin/update-ca-trust
}
do_help()
{
echo "usage: $0 [check | default | disable | install]"
}
if [[ $# -eq 0 ]]; then
# no parameters
do_help
exit $?
fi
if [[ "$1" = "install" ]]; then
do_install
exit $?
fi
if [[ "$1" = "default" ]]; then
do_default
exit $?
fi
if [[ "$1" = "disable" ]]; then
do_disable
exit $?
fi
if [[ "$1" = "check" ]]; then
do_check
exit $?
fi
echo "$0: Unsupported command $1"
do_help