ÒÔϽű¾°ÑËùÓÐÒª±à¼µÄÔ´Îļþ±¸·Ýµ½/bakĿ¼Ï£¬²¢ÇÒËùÓеÄ·¾¶Î»Öñ£³Ö²»±ä£¬±ÈÈçvii /etc/hosts£¬Ôò°Ñ/etc/hosts¸´ÖƵ½/bak/etc/hosts¡£
# cat /sh/vii
#!/usr/bin/bash
#ÅжÏÔ´ÎļþÊÇ·ñ´æÔÚ£¬´æÔÚ²ÅÖ´Ðб¸·Ý²Ù×÷
if [ -f "$1" ];then
#´´½¨º¯Êý£¬¿ÉʵÏÖÈÎÒâ¼ü¼ÌÐø
#Èç¹ûÄãµÄ»úÆ÷Éϲ»ÈÏstty rawÄÇô°Ñº¯ÊýÖÐÁ½´¦³öÏÖµÄraw»»³Écbreak
get_char()
{
SAVEDSTTY=`stty -g`
stty -echo
stty raw
dd if=/dev/tty bs=1 count=1 2> /dev/null
stty -raw
stty echo
stty $SAVEDSTTY
}
#´´½¨±¸·ÝµÄ¸ù·¾¶/bak,²¢ÈÃËùÓÐÈ˾ßÓÐдȨÏÞ
if [ ! -d "/bak" ];then
mkdir /bak
chmod a+w /bak
fi
#ÅжÏÄ¿±êÎļþËù´¦µÄ·¾¶²¢´´½¨£¬ÈÃËùÓÐÈ˶Ôд´½¨µÄÈÎÒ»¼¶Ä¿Â¼¾ù¾ßÓÐдȨÏÞ
echo $1 | grep "/" >/dev/null
if [ "`echo $?`" = "0" ];then
cd ${1%/*}
fi
pwdnow=`pwd`
path=/bak${pwdnow}
#echo $path
if [ ! -d "$path" ];then
mkdir -p $path
patha=${pwdnow#/}
chmod -R a+w /bak/${patha%%/*}
fi
#¸´ÖÆÄ¿±êÎļþ
datenow=`date +%Y%m%d`
timenow=`date +%H%M%S`
/usr/bin/cp $1 ${path}/${1##*/}.${datenow}.${timenow}
echo "Target file \"$1\"
has been copied to ${path}/${1##*/}.${datenow}.${timenow}"
echo "Now going to \"vi $1\",Press any key to continue..."
char=`get_char`
fi
#µ÷ÓÃviÃüÁî
vi $1
µ÷Óýű¾
# chmod a+x /sh/vii
# /sh/vii /etc/passwd
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