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也许很多人认为shell不能并发任务，其实可通过其它一些方式来实现。下面的脚本是我批量快速管理500+服务器脚本，阅读该脚本前建议先看《自动执行远程主机命令expect脚本》、《自动远程拷贝expect脚本》和《getopt：命令行选项、参数处理》
用法：
Usage: ./multi_main.sh [-h|--help]
[-v|-V|--version]
[-l|--iplist ... ]
[-c|--config ... ]
[-t|--sshtimeout ... ]
[-T|--fttimeout ... ]
[-L|--bwlimit ... ]
[-n|--ignore]
cat config.txt #上传文件和执行命令
file:~/scripts/test.sh /root/ push
com:::./test.sh
cat iplist.txt #ip列表
# Usage:
#ip port user password [password_2] [password_3] [password_4]
# Example:
#192.168.0.100 22 root 123456
192.168.0.200 22 root 123456
192.168.0.201 22 root 123456
...
./multi_main.sh -c config.txt -l iplist.txt #开始执行，可查看result目录下的日志来分析是否执行成功
脚本如下：
mssh.exp:
#!/usr/bin/expect --
if { [llength $argv] < 4 } {
puts "Usage: $argv0 ip user passwd port commands timeout"
exit 1
}
match_max 600000
set ipcode [lindex $argv 0]
set ip [exec dc -e $ipcode]
set user [lindex $argv 1]
set passwdcode [lindex $argv 2]
set passwd [exec dc -e $passwdcode]
set portcode [lindex $argv 3]
set port [exec dc -e $portcode]
set commands [lindex $argv 4]
set timeoutflag [lindex $argv 5]
set yesnoflag 0
set timeout $timeoutflag
for {} {1} {} {
# for is only used to retry when "Interrupted system call" occured
spawn /usr/bin/ssh -o GSSAPIAuthentication=no -q -l$user -p$port $ip
expect {
"assword:" {
send "$passwd\r"
break;
}
"yes/no)?" {
set yesnoflag 1
send "yes\r"
break;
}
"FATAL" {
puts "\nCONNECTERROR: $ip occur FATAL ERROR!!!\n"
exit 1
}
timeout {
puts "\nCONNECTERROR: $ip Logon timeout!!!\n"
exit 1
}
"No route to host" {
puts "\nCONNECTERROR: $ip No route to host!!!\n"
exit 1
}
"Connection Refused" {
puts "\nCONNECTERROR: $ip Connection Refused!!!\n"
exit 1
}
"Connection refused" {
puts "\nCONNECTERROR: $ip Connection Refused!!!\n"
exit 1
}
"Host key verification failed" {
puts "\nCONNECTERROR: $ip Host key verification failed!!!\n"
exit 1
}
"Illegal host key" {
puts "\nCONNECTERROR: $ip Illegal host key!!!\n"
exit 1
}
"Connection Timed Out" {
puts "\nCONNECTERROR: $ip Logon timeout!!!\n"
exit 1
}
"Interrupted system call" {
puts "\n$ip Interrupted system call!!!\n"
}
}
}
if