shell之ssh远程管理（这个脚本就是上一个jump.sh调用的脚本）

#!/bin/bash
IP=`cat /home/lichuang/scrips/ipssh.txt`
CMD=$1
PROT=22
function CANSHU(){
if [ $# -lt 1 ]
then
echo '###############################'
echo "PLS LNPUT A Parameter"
echo "like this : sh $0 'df -h'"
echo '###############################'
exit
fi
}
function USER(){
if [ $UID -ne 888 ]
then
echo 'PLS SU - 888'
exit
fi
}
function SSH(){
for n in $IP
do
HOSTNAME=`ssh -p $PROT $USER@$n "hostname"`
echo "=======${n}===${HOSTNAME}======="
ssh -p $PROT lichuang@$n "$CMD"
echo "   "
done
}
main (){
CANSHU $CMD
USER
SSH
}
main