1、取本机ip地址
[root@centos6 ~]# ifconfig
eth1 Link encap:Ethernet HWaddr 00:0C:29:35:DD:AB
inet addr:10.1.253.95 Bcast:10.1.255.255 Mask:255.255.0.0
inet6 addr: fe80::20c:29ff:fe35:ddab/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:378023 errors:0 dropped:0 overruns:0 frame:0
TX packets:12444 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:46926222 (44.7 MiB) TX bytes:1240063 (1.1 MiB)
eth2 Link encap:Ethernet HWaddr 00:0C:29:35:DD:B5
inet addr:192.168.226.135 Bcast:192.168.226.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe35:ddb5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2539 errors:0 dropped:0 overruns:0 frame:0
TX packets:225 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:281133 (274.5 KiB) TX bytes:39650 (38.7 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
[root@centos6 ~]# ifconfig |awk -F ‘[: ]+‘ ‘NR==2{print $4}‘
10.1.253.95
[root@centos6 ~]# ifconfig
eth1 Link encap:Ethernet HWaddr 00:0C:29:35:DD:AB
inet addr:10.1.253.95 Bcast:10.1.255.255 Mask:255.255.0.0
inet6 addr: fe80::20c:29ff:fe35:ddab/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:379965 errors:0 dropped:0 overruns:0 frame:0
TX packets:12615 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:47097014 (44.9 MiB) TX bytes:1264173 (1.2 MiB)
eth2 Link encap:Ethernet HWaddr 00:0C:29:35:DD:B5
inet addr:192.168.226.135 Bcast:192.168.226.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe35:ddb5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2541 errors:0 dropped:0 overruns:0 frame:0
TX packets:227 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:281535 (274.9 KiB) TX bytes:40052 (39.1 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
[root@centos6 ~]# ifconfig |head -2
eth1 Link encap:Ethernet HWaddr 00:0C:29:35:DD:AB
inet addr:10.1.253.95 Bcast:10.1.255.255 Mask:255.255.0.0
[root@centos6 ~]# ifconfig |head -2 |sed -r ‘s/^.*addr:(.*) Bca.*$/\1/g‘
eth1 Link encap:Ethernet HWaddr 00:0C:29:35:DD:AB
10.1.253.95
[root@centos6 ~]# ifconfig |head -2|tail -1 |tr -s ‘ ‘ ‘:‘ |cut -d: -f4
10.1.253.95
[root@centos6 ~]#1.1、取出本机所有的IP地址
[root@centos6 ~]# ifconfig |tr -cs ‘[:digit:].‘ ‘\n‘|sort -t. -k4|tail -8 255.0.0.0 255.255.0.0 255.255.255.0 127.0.0.1 192.168.226.135 10.1.255.255 192.168.226.255 10.1.253.95 [root@centos6 ~]#
2、取各分区利用率的数值
[root@centos6 ~]# df |grep "sd.*" /dev/sda3 121455724 3990720 111288700 4% / /dev/sda1 194241 34082 149919 19% /boot /dev/sdb 20511356 44992 19417788 1% /mnt [root@centos6 ~]# df |grep "sd.*"|tr -s ‘ ‘ ‘:‘ /dev/sda3:121455724:3990720:111288700:4%:/ /dev/sda1:194241:34082:149919:19%:/boot /dev/sdb:20511356:44992:19417788:1%:/mnt [root@centos6 ~]# df |grep "sd.*"|tr -s ‘ ‘ ‘:‘|cut -d: -f1,5 /dev/sda3:4% /dev/sda1:19% /dev/sdb:1% [root@centos6 ~]# df |grep "sd.*"|tr -s ‘ ‘ ‘:‘|cut -d: -f1,5|sort -nr /dev/sdb:1% /dev/sda3:4% /dev/sda1:19% [root@centos6 ~]#
3、统计/etc/init.d/functions 文件中每个单词出现的次数,并按频率从高到低显示
[root@centos6 ~]# cat /etc/init.d/functions |tr -cs ‘[:alpha:]‘ ‘\n‘|sort|uniq -c |sort-nr 83 if 77 then 75 pid 73 echo 72 fi 61 return 57 dev 54 file 50 n 46 local
4、/etc/rc.d/init.d/functions或/etc/rc.d/init.d/functions/" 取目录名
[root@centos6 ~]# echo "/etc/init.d/functions"|sed -r ‘s#^(/.*/)[^/]+/?#\1#g‘ /etc/init.d/ [root@centos6 ~]#
4.1、/etc/rc.d/init.d/functions或/etc/rc.d/init.d/functions/" 取基名
[root@centos6 ~]# echo "/etc/init.d/functions/"|sed -r ‘s#/.*/([^/]+)#\1#g‘ functions/ [root@centos6 ~]#
本文出自 “叫醒你的不是闹钟而是梦想” 博客,请务必保留此出处http://purify.blog.51cto.com/10572011/1835797
原文地址:http://purify.blog.51cto.com/10572011/1835797