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　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。 . Prv8 Shell

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User : rainic ( 1014)
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Directory : /usr/share/doc/socat/

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Current File : //usr/share/doc/socat/readline-test.sh

#! /usr/bin/env bash
# source: readline-test.sh
# Copyright Gerhard Rieger and contributors (see file CHANGES)
# Published under the GNU General Public License V.2, see file COPYING

# script that simulates a simple program with authentication.
# is just for testing the readline features
# perform the test with something like:
# ./socat readline,history=$HOME/.history,noecho='^Password: ' system:./readline-test.sh,pty,setsid,ctty,stderr,sigint,sigquit,echo=0,raw


BANNER='readline feature test program'
USERPROMPT='Authentication required\nUsername: '
PWDPROMPT='Password: '
PROMPT='prog> '

# degenerated user database
CREDUSER="user"
CREDPASS="password"

if   [ $(echo "x\c") = "x" ]; then ECHO="echo"
elif [ $(echo -e "x\c") = "x" ]; then ECHO="echo -e"
fi

#trap "$ECHO $0 got SIGINT"  INT
trap "$ECHO $0 got SIGINT"  INT
trap "$ECHO $0 got SIGQUIT" QUIT

# print banner
$ECHO "$BANNER"

# on (some) ksh read -p does not mean prompt
$ECHO "$USERPROMPT\c"; read -r USERNAME
$ECHO "$PWDPROMPT\c"; read -rs PASSWORD
$ECHO

if [ "$USERNAME" != "$CREDUSER" -o "$PASSWORD" != "$CREDPASS" ]; then
    $ECHO "Authentication failed" >&2
    exit -1
fi

while $ECHO "$PROMPT\c"; read -r COMMAND; do
    if [ "$COMMAND" = "exit" ]; then
	break;
    fi
    $ECHO "executing $COMMAND"
done

haha - 2025