linux 提取执行命令后的输出 shell脚本

比如现在要统计4个命令的输出结果

./xchain-cli status -H 192.168.92.129:37101
./xchain-cli status -H 192.168.92.130:37101
./xchain-cli status -H 192.168.92.131:37101
./xchain-cli status -H 192.168.92.132:37101

提取其中trunkHeight字段的值

 

vim get_trunkHeight.sh

#!/bin/bash 
NODES_COUNT=4
NODES_IP=('192.168.92.129' '192.168.92.130' '192.168.92.131' '192.168.92.132')

i=0
while [ $i -lt $NODES_COUNT ]
do
    echo -n "node${NODES_IP[$i]}:";
    ./xchain-cli status -H ${NODES_IP[$i]}:37101 | grep trunkHeight;
    ((i=i+1))
done
echo -n "finished"

 

https://blog.csdn.net/m0_43404744/article/details/102707053