我运行命令
for cpu in `cat /proc/cpuinfo | grep processor | wc -l`; do
top -b -c -n$cpu | egrep -v 'Mem|Swap|{top -b -c}' | grep load -A10 | grep -v grep
done
但是shell会额外打印10行，我希望在每次调用删除后最后10行。
这是完整的输出，我希望从每个段落中删除'-'之后的行
]# for cpu in `cat /proc/cpuinfo |grep processor |wc -l`;do top -b -c -n$cpu |egrep -v 'Mem|Swap|{top -b -c}' |grep load -A10 |grep -v grep; done
top - 07:34:27 up 17 days, 9:04, 1 user, load average: 0.00, 0.02, 0.68
Tasks: 268 total, 1 running, 267 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.9%us, 0.1%sy, 0.0%ni, 98.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4193 root 20 0 28164 1652 1136 R 2.0 0.0 0:00.01 top -b -c -n8
14303 appuser 20 0 12.6g 3.2g 56m S 2.0 10.2 180:45.23 /apps/jdk1.8.0_151/bin/java -D[Standalone] -XX:+UseCompressedOops -server -Xms2048m -Xmx6144m -XX:PermSize=256m -XX:MaxPermSize=512m -Djava.ne
1 root 20 0 30068 1664 1444 S 0.0 0.0 0:01.54 /sbin/init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.02 [kthreadd]
3 root RT 0 0 0 0 S 0.0 0.0 0:00.39 [migration/0]
4 root 20 0 0 0 0 S 0.0 0.0 0:02.43 [ksoftirqd/0]
--
8629 daemon 20 0 56504 8412 5756 S 0.0 0.0 0:05.57 /opt/quest/sbin/.vasd -p /var/opt/quest/vas/vasd/.vasd.pid
8630 daemon 20 0 56476 7724 5148 S 0.0 0.0 0:00.04 /opt/quest/sbin/.vasd -p /var/opt/quest/vas/vasd/.vasd.pid
8631 daemon 20 0 54404 7436 4840 S 0.0 0.0 0:00.22 /opt/quest/sbin/.vasd -p /var/opt/quest/vas/vasd/.vasd.pid
13089 root 18 -2 10764 392 304 S 0.0 0.0 0:00.00 /sbin/udevd -d
13090 root 18 -2 10764 416 288 S 0.0 0.0 0:00.00 /sbin/udevd -d
13203 root 20 0 254m 8120 4944 S 0.0 0.0 12:02.50 /usr/sbin/vmtoolsd
13227 root 20 0 60060 9m 7280 S 0.0 0.0 0:00.06 /usr/lib/vmware-vgauth/VGAuthService -s
14259 root 20 0 0 0 0 S 0.0 0.0 0:13.53 [flush-253:6]
14262 appuser 20 0 103m 1456 1196 S 0.0 0.0 0:00.00 /bin/sh ./standalone-mdm-hub-server.sh -c standalone-full.xml -b 0.0.0.0 -bmanagement 0.0.0.0 -u 230.0.0.4 -Djboss.server.base.dir=../mdm-hub-
--
top - 07:34:30 up 17 days, 9:04, 1 user, load average: 0.00, 0.02, 0.68
Tasks: 268 total, 1 running, 267 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.2%us, 0.1%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3581 root 20 0 2055m 51m 17m S 1.0 0.2 237:05.21 /usr/share/metricbeat/bin/metricbeat -c /etc/metricbeat/metricbeat.yml -path.home /usr/share/metricbeat -path.config /etc/metricbeat -path.dat
4193 root 20 0 28172 1760 1236 R 0.7 0.0 0:00.03 top -b -c -n8
14303 appuser 20 0 12.6g 3.2g 56m S 0.7 10.2 180:45.25 /apps/jdk1.8.0_151/bin/java -D[Standalone] -XX:+UseCompressedOops -server -Xms2048m -Xmx6144m -XX:PermSize=256m -XX:MaxPermSize=512m -Djava.ne
42 root 20 0 0 0 0 S 0.3 0.0 3:05.13 [events/7]
13203 root 20 0 254m 8120 4944 S 0.3 0.0 12:02.51 /usr/sbin/vmtoolsd
14553 appuser 20 0 22.5g 18g 54m S 0.3 57.3 1467:43 /apps/jdk1.8.0_151/bin/java -D[Standalone] -XX:+UseCompressedOops -server -Xms2048m -Xmx16000m -XX:PermSize=512m -XX:MaxPermSize=1048m -Djava.
--
8629 daemon 20 0 56504 8412 5756 S 0.0 0.0 0:05.57 /opt/quest/sbin/.vasd -p /var/opt/quest/vas/vasd/.vasd.pid
8630 daemon 20 0 56476 7724 5148 S 0.0 0.0 0:00.04 /opt/quest/sbin/.vasd -p /var/opt/quest/vas/vasd/.vasd.pid
8631 daemon 20 0 54404 7436 4840 S 0.0 0.0 0:00.22 /opt/quest/sbin/.vasd -p /var/opt/quest/vas/vasd/.vasd.pid
13089 root 18 -2 10764 392 304 S 0.0 0.0 0:00.00 /sbin/udevd -d
13090 root 18 -2 10764 416 288 S 0.0 0.0 0:00.00 /sbin/udevd -d
13227 root 20 0 60060 9m 7280 S 0.0 0.0 0:00.06 /usr/lib/vmware-vgauth/VGAuthService -s
14259 root 20 0 0 0 0 S 0.0 0.0 0:13.53 [flush-253:6]
14262 appuser 20 0 103m 1456 1196 S 0.0 0.0 0:00.00 /bin/sh ./standalone-mdm-hub-server.sh -c standalone-full.xml -b 0.0.0.0 -bmanagement 0.0.0.0 -u 230.0.0.4 -Djboss.server.base.dir=../mdm-hub-
14512 appuser 20 0 103m 1452 1196 S 0.0 0.0 0:00.01 /bin/sh ./standalone-mdm-process-server.sh -c standalone-full.xml -b 0.0.0.0 -bmanagement 0.0.0.0 -Djboss.server.base.dir=../mdm-process-serve
答案 0 :(得分：0)
因为找到“ grep加载”。总是花一点时间来分解您正在做的事情，并看看中间产品。试试：
top -b -c -n1 |egrep -v 'Mem|Swap|{top -b -c}' |grep load -A10
快速解决方案是将-m1仅添加到第一个匹配项中。