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bash memcache cli
#!/bin/bash
#filename cm.sh
#author:wumin
#---Date:2011.12.29 pm---
#notice:not suport kind of ubuntu and debian system.(debian not suport /dev/tcp/host/port stye )
usage() {
format_usage="Usage:\n
\t\t $0 [-hpck] \n \
\t\t [-h]\t memcached hostname or ip. \n \
\t\t [-p]\t memcached port.\n \
\t\t [-c]\t command. \n \
\t\t [-k]\t key or prefix key."
echo -e $format_usage
}
sendmsg()
{
msg=$1
echo -e "$1\r">&8
getout
}
getout()
{
while read -u 8 -d $'\r' name
do
if [ "${name}" == "END" -o "${name}" == "ERROR" ];then
break
fi
echo $name
done
}
stats() {
sendmsg "stats"
sendmsg "quit"
}
list_items_num() {
sendmsg "stats items"
sendmsg "quit"
}
get_last_items_id() {
LastID=$(list_items_num|tail -n 1|awk -F':' '{print $2}')
sendmsg "quit"
echo $LastID
return $LastID
}
list_all_key() {
:>/dev/shm/cm_all_keys_$MCSERVER_$MCPORT.txt
max_item_num=$(get_last_items_id)
for i in `seq 1 $max_item_num`
do
echo -e "stats cachedump $i 0\r"|nc $MCSERVER $MCPORT|awk '{print $2}'
#这里有点问题,以后看看,先nc粗暴解决一下
#sendmsg "stats cachedump $i 0"
#1>>/dev/shm/cm_all_keys_$MCSERVER_$MCPORT.txt
done >>/dev/shm/cm_all_keys_$MCSERVER_$MCPORT.txt
sed -i '/^$/d' /dev/shm/cm_all_keys_$MCSERVER_$MCPORT.txt
}
get() {
sendmsg "get $1"
sendmsg "quit"
}
purge() {
sendmsg "delete $1\r\n"
sendmsg "quit"
}
superpurge() {
list_all_key
if [ ! -z "/dev/shm/cm_all_keys_$MCSERVER_$MCPORT.txt" ];then
grep "$1" /dev/shm/cm_all_keys_$MCSERVER_$MCPORT.txt >/dev/shm/temp.swap.$MCSERVER_$MCPORT.txt
fi
while read keys
do
#这里也有一些问题.我擦.没理由啊.nc暴力解决
#sendmsg "delete ${keys}\r"
echo -e "delete ${keys}\r"|nc $MCSERVER $MCPORT
done </dev/shm/temp.swap.$MCSERVER_$MCPORT.txt
rm -rf /dev/shm/temp.swap.$MCSERVER_$MCPORT.txt
}
if [ "$?" != "0" ];then
echo "open $host $port fail!"
exit 1
fi
if [ "$#" -le 4 ];then
usage
exit 1
fi
while getopts "h:p:c:k:" flag
do
case $flag in
h)MCSERVER=$OPTARG
echo "host = $MCSERVER"
;;
p)MCPORT=$OPTARG
echo "PORT = $MCPORT"
;;
c)command=${OPTARG:="stats"}
echo "command = $command"
;;
k)key=$OPTARG
echo "key is $key"
esac
done
exec 8<>/dev/tcp/${MCSERVER}/${MCPORT}
eval $command "$key"
exec 8<&-
exec 8>&-
exit 0

dolfly commented Sep 20, 2013

sendmsg()
{
    msg=$1
    printf  "$1\r\n">&8
    getout
}

这里面用的echo -e "$1\r">&8 改成用 printf "$1\r\n" >&8 ,中间你就不需要用nc暴力解决了。

This fork supports debian-based systems and the set/add/etc. functions, but requires nc to be available.

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