cat结合EOF

1#注意：cat后面可以带>或者>>； EOF完标准只能跟<<符号；
2cat >> /etc/hosts << EOF 
3192.168.50.128 master
4192.168.50.128 node0
5192.168.50.131 node1
6192.168.50.132 node2
7EOF

1cat > /root/shell2.sh<< EOF                  
2for((i=1;i<=100;i++));
3do
4echo \$i
5done                                               
6EOF

1cat > /root/kube.conf << EOF
2KUBE_APISERVER_OPTS="--logtostderr=false \\
3--v=2 \\
4--log-dir=/var/log/kubernetes \\
5--advertise-address=192.168.50.128
6EOF

 1[root@I ~]# cat > /root/kube.conf << EOF
 2> KUBE_APISERVER_OPTS="--logtostderr=false \\
 3> --v=2 \\
 4> --log-dir=/var/log/kubernetes \\
 5> --advertise-address=192.168.50.128
 6> EOF
 7[root@I ~]# 
 8[root@I ~]# cat kube.conf 
 9KUBE_APISERVER_OPTS="--logtostderr=false \
10--v=2 \
11--log-dir=/var/log/kubernetes \
12--advertise-address=192.168.50.128
13[root@I ~]#