nginx -V 2>&1|awk -F'/' '{print $NF}'|awk 'NR==1{print $0}'
nginx -v 2>&1|awk -F'/' '{print $NF}'
java -version 2>&1|awk 'NR==1{print $0}'
java -version 2>&1|grep "java version"
来源:oschina
链接:https://my.oschina.net/HeAlvin/blog/4299924