查看系统相关信息java
[root@test ~]# lsb_release -aweb
LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarchapache
Distributor ID: RedHatEnterpriseServerbootstrap
Description: Red Hat Enterprise Linux Server release 6.6 (Santiago)vim
Release: 6.6tomcat
Codename: Santiago网络
[root@test ~]# uname -aapp
Linux test 2.6.32-504.el6.x86_64 #1 SMP Tue Sep 16 01:56:35 EDT 2014 x86_64 x86_64 x86_64 GNU/Linuxtcp
[root@test ~]# env（系统环境变量信息）oop
[root@test ~]# head -n 1 /etc/issue
查看系统资源
[root@test ~]# free –m（查看内存使用量和交换区使用量）
total used free shared buffers cached
Mem: 2006 1901 104 1 309 379
-/+ buffers/cache: 1212 793
Swap: 3999 578 3421
[root@test ~]# df –h（查看各分区使用状况）
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/asr_r0p3 62G 43G 17G 72% /
tmpfs 1004M 80K 1003M 1% /dev/shm
/dev/mapper/asr_r0p1 969M 34M 885M 4% /boot
[root@test ~]# du -sh /gdsfApps/webServer/apache-tomcat-6.0.35/logs/*（查看指定目录的大小）
8.0K /gdsfApps/webServer/apache-tomcat-6.0.35/logs/catalina.2017-08-17.log
92K /gdsfApps/webServer/apache-tomcat-6.0.35/logs/catalina.2017-08-17.out
0 /gdsfApps/webServer/apache-tomcat-6.0.35/logs/host-manager.2017-08-17.log
4.0K /gdsfApps/webServer/apache-tomcat-6.0.35/logs/localhost.2017-08-17.log
0 /gdsfApps/webServer/apache-tomcat-6.0.35/logs/manager.2017-08-17.log
网络
[root@test ~]# ifconfig（查看全部网络接口的属性）
eth0 Link encap:Ethernet HWaddr 00:11:25:8C:0A:E4
inet addr:192.168.199.110 Bcast:192.168.199.255 Mask:255.255.255.0
inet6 addr: fe80::211:25ff:fe8c:ae4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:8262349 errors:0 dropped:0 overruns:0 frame:0
TX packets:1995711 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3713318471 (3.4 GiB) TX bytes:511496797 (487.8 MiB)
Interrupt:16
eth1 Link encap:Ethernet HWaddr 00:11:25:8C:0A:E5
UP BROADCAST RUNNING MULTICAST MTU:1500 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:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:16
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:551316 errors:0 dropped:0 overruns:0 frame:0
TX packets:551316 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:363433967 (346.5 MiB) TX bytes:363433967 (346.5 MiB)
[root@test ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0（编辑相关IP网络配置）
DEVICE=eth0
TYPE=Ethernet
UUID=e0a10613-98f5-4672-a09e-f4bed7652d00
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
IPADDR=192.168.199.110
DNS1=202.96.128.86
PREFIX=24
GATEWAY=192.168.199.1
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
HWADDR=00:11:25:8C:0A:E4
[root@test ~]# service iptables stop/start/restart/status（关闭/开启/重启/状态）
[root@localhost ~]# vim /etc/sysconfig/iptables（编辑防火墙相关配置）
# sample configuration for iptables service
# you can edit this manually or use system-config-firewall
# please do not ask us to add additional ports/services to this default configuration
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
命令行相关快捷键
Tab：命令行补全
Ctrl+a：跳到命令行的行首
Ctrl+e：跳到命令行的行末
Ctrl+w：删除命令行中一个命令集。例如参数集或者命令语句
Ctrl+r：能够根据你输入的字符搜索以前执行的历史命令（ctrl+r能够切换）
Tomcat在Linux下的一些操做
[root@test ~]# ps aux|grep tomcat（查找Tomcat执行进程，也能够使用ps -ef|grep tomcat）
root 16260 0.0 0.0 105420 876 pts/0 S+ 09:41 0:00 grep tomcat
root 31602 0.0 0.0 108160 652 ? S Aug17 0:00 /bin/sh /gdsfApps/webServer/apache-tomcat-6.0.35/bin/catalina.sh start
root 31603 0.0 0.0 4116 580 ? S Aug17 0:00 /usr/local/cronolog/sbin/cronolog /gdsfApps/webServer/apache-tomcat-6.0.35/logs/catalina.%Y-%m-%d.out
root 31604 0.4 16.4 1855728 338340 ? Sl Aug17 3:46 /usr/bin/java -Djava.util.logging.config.file=/gdsfApps/webServer/apache-tomcat-6.0.35/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Dcom.sun.management.jmxremote.port=60001 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=19.16.91.118 -Djava.endorsed.dirs=/gdsfApps/webServer/apache-tomcat-6.0.35/endorsed -classpath /gdsfApps/webServer/apache-tomcat-6.0.35/bin/bootstrap.jar -Dcatalina.base=/gdsfApps/webServer/apache-tomcat-6.0.35 -Dcatalina.home=/gdsfApps/webServer/apache-tomcat-6.0.35 -Djava.io.tmpdir=/gdsfApps/webServer/apache-tomcat-6.0.35/temp org.apache.catalina.startup.Bootstrap start
[root@test ~]# kill -9 31604（杀死Tomcat进程，即关闭Tomcat）
[root@test ~]# /gdsfApps/webServer/apache-tomcat-6.0.35/bin/startup.sh（启动Tomcat）