0

我需要有关如何在 shell 脚本的 while 循环中通过 ssh 命令连接远程系统的帮助。我能够使用 shell 脚本中的 ssh 连接一个远程系统。请找到下面给出的示例代码片段......

ssh "root@148.147.179.100" ARG1=$rpmFileName 'bash -s' <<'ENDSSH'        
  echo ">>Checksum ..."
  md5sum /root/$ARG1
ENDSSH

当尝试在循环中运行同一段代码时，出现错误“语法错误：文件意外结束”，我无法解决。

但是，当将同一段代码放在另一个脚本文件中并在另一个脚本的 while 循环中使用该文件时，它正在工作。

任何人都可以帮我解决一些问题。

请找到下面给出的完整代码...

#!/bin/sh
rpmFileName=""
file="serverIps.txt"
dir="/home/rtulluri/downloads/EVAT-1123/AxisTar";
numberOfIps=0
axisTarfileTarget='/var'
#This function checks whether given ip is valid  or not
#returns 0 for valid ip, 1 for invalid ip
function valid_ip()
{
    local  ip=$1
    local  stat=1
    if [[ $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]
    then
        OIFS=$IFS
        IFS='.'
        ip=($ip)
        IFS=$OIFS
        [[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \
            && ${ip[2]} -le 255 && ${ip[3]} -le 255 ]]
        stat=$?
    fi
    #echo "stat = $stat"
    return $stat
}
#Check whether given file exists or not
if [ -s $file ]
then
 echo "$file exists"
else
  echo "$file doesn't exist"
  echo "exiting ........"
  exit
fi
IFS=,
echo "---------------"
while read sysType serverIp uid pwd
do

  sysType="${sysType#"${sysType%%[![:space:]]*}"}"   # remove leading whitespace characters
  sysType="${sysType%"${sysType##*[![:space:]]}"}"   # remove trailing whitespace characters
  serverIp="${serverIp#"${serverIp%%[![:space:]]*}"}"   # remove leading whitespace characters
  serverIp="${serverIp%"${serverIp##*[![:space:]]}"}"   # remove trailing whitespace characters

  uid="${uid#"${uid%%[![:space:]]*}"}"   # remove leading whitespace characters
  uid="${uid%"${uid##*[![:space:]]}"}"   # remove trailing whitespace characters

  pwd="${pwd#"${pwd%%[![:space:]]*}"}"   # remove leading whitespace characters
  pwd="${pwd%"${pwd##*[![:space:]]}"}"   # remove trailing whitespace characters

  if [ -n "$serverIp" ]
  then
     valid_ip $serverIp
     #Assign the return value to a variable
     isValidIp=$?
   else
      isValidIp=1
  fi

  if [ $isValidIp -eq "0" ]
    then
       numberOfIps=$(( $numberOfIps + 1 ))
       echo "$numberOfIps) $serverIp --> is valid"     

       if [ "$sysType" = "ebox" ]
       then
               echo "$serverIp is an eBox device.."
           echo "About to pass $serverIp as argument to connct.sh"
           #./connct.sh $serverIp
           ssh "$address" ARG1=$rpmFileName 'bash -s' <<'ENDSSH'
        echo ">>Checksum ..."
           ENDSSH
        fi
    else
       echo "$serverIp --> is invalid"
    fi    
    echo ""
done < $file
4

1 回答 1

0

您可以尝试使用 '-n' ssh 开关

例如：

for i in {1..7}
do
    ssh -n myhost$i mycommand
done
于 2012-08-03T12:54:00.200 回答