并行rsync
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#!/bin/bash if [ $# -le 2 ]; then echo -e "usage : \n\t$0 hostList src_file dst_path" echo -e "example: \n\t$0 hostList file.txt /home/work/opdir" exit 1 fi # concurrent number by default. CON_NUM=9 host_list=$1 shift src=‘‘ while [ $# -gt 1 ]; do src="$src $1" shift done dst=$1 echo "src: $src" echo "det: $dst" if [ ! -f $host_list ]; then echo "$host_list is not exist!" exit 2 fi function your_cmd() { host=$1 #echo -e "---- cmd() start to : $host --" CMD="scp -r ${src} ${host}:${dst} 2>/dev/null" eval ${CMD} ret=$? if [ $ret -ne 0 ];then echo -e "\t$host: cmd return retry $ret" fi } function concurrent() { # ff_file which is opened by fd 4 will be really removed after script stopped mkfifo ./fifo.$$ && exec 4<> ./fifo.$$ && rm -f ./fifo.$$ # initial fifo: write $con_num line to $ff_file for ((i=1; i<=$CON_NUM; i++)); do echo "init:$i" >&4 # init fifo done for host in $(cat $host_list | grep -v "^#"); do read -u 4 # read from fifo to REPLY { #echo -e "\n-- current loop for: \"$host\" [ fifo id: \"$REPLY\" ]" your_cmd "$host" echo -e "---- done: $host ----\n" echo "real:$host" 1>&4 # write to $fifo } & # & to backgroud each process in {} done wait # wait all con-current cmd in { } been running over } concurrent
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