1、取本机ip地址
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[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 ~]
#
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1.1、取出本机所有的IP地址
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[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 ~]
#
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2、取各分区利用率的数值
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[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 ~]
#
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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
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[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
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file
50 n
46
local
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4、/etc/rc.d/init.d/functions或/etc/rc.d/init.d/functions/" 取目录名
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[root@centos6 ~]
# echo "/etc/init.d/functions"|sed -r 's#^(/.*/)[^/]+/?#\1#g'
/etc/init
.d/
[root@centos6 ~]
#
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4.1、/etc/rc.d/init.d/functions或/etc/rc.d/init.d/functions/" 取基名
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[root@centos6 ~]
# echo "/etc/init.d/functions/"|sed -r 's#/.*/([^/]+)#\1#g'
functions/
[root@centos6 ~]
#
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本文转自chengong1013 51CTO博客，原文链接：http://blog.51cto.com/purify/1835797，如需转载请自行联系原作者
