/bin/ps |/bin/grep udhcpc |/bin/grep wlan0 | /usr/bin/awk -F ' ' '{print $1}' |xargs /bin/kill -9
890 root udhcpc -i wlan0
990 root udhcpc -i eth0
取结果的第一行或者第二行
grep nameserver /etc/resolv.conf|awk 'NR==2 {print $2}'
/bin/ps |/bin/grep udhcpc |/bin/grep wlan0 | /usr/bin/awk -F ' ' '{print $1}' |xargs /bin/kill -9
890 root udhcpc -i wlan0
990 root udhcpc -i eth0
取结果的第一行或者第二行
grep nameserver /etc/resolv.conf|awk 'NR==2 {print $2}'