1. important responsibility of operation and maintenance personnel What?
Solution: 1: data security (no loss, no leaks);
2: Never downtime (7 * 24 service);
3: a better user experience (servers do optimization, systems, services do optimization)
2. Absolute and relative paths concepts and differences?
Solution: absolute path: the path to the root of, for example: / etc / top is the root, that is, the absolute path;
A relative path: not starting from the root, for example: etc, root, home, etc.
3. Description of processes, daemons, the difference between the program?
Solution: Program: computer files stored on the disk (which may be source code, the program may be run);
Process: running programs, stored in memory;
Daemon: to handle certain tasks for the program constantly running;
4. Write mainstream linux distributions you know?
Solution: RedHat, Centos, Ubuntu, Debian, unicorn.
5. Please describe GNU, GPL noun meaning and content?
Solution: GNU: GNU not is unix, FSF 1985 Free Software Foundation founded by Richard Stallman, the purpose is to develop a class unix, free, free, open source linux system, but GUN system is not available, but the development of many project components: gcc, bash, gawk, emacs and so on;
GPL: General Public License; everyone has the right to acquire, modify, publish, disseminate software free, but must take the modified code announced;
6. Describe the command prompt various components of meaning?
Solution: [root @ xk0218 /] #
User host name of the current path, the administrator prompt ¥ #
7. NIC configuration address? Let specify procedures you need to configure the boot from Kai at which file? Boot automatically mount the file? DNS client file address?
解：/etc/sysconfig/network-script/ifcfg-eth0;；
/etc/rc.local ;
/etc/fstab;
/etc/resolv.conf
8. Create xk0218 directory in the / tmp file, and the file in which to create moyu.txt?
mkdir /tmp/xk0218
cd /tmp/xk0218
touch moyu.txt
a: Type xkmy (3 ways) in the moyu.txt
(1) vim moyu.txt enters normal mode, press enter i insert mode, xkmy, press esc return to normal mode, and then press: wq save and exit;
（2）echo “xkmy”> moyu.txt
(3) cat > moyu.txt <<EOF
Strict
EOF
b: the following content through a command input to moyu.txt in?
Method One: cat> moyu.txt << EOF
ww
xk
0218
EOF
Method Two: echo
“ww
xk
0218”
>moyu.txt
Method three:
echo -e “ww\xk\0218”>moyu.txt
9. Known / etc / linux directory of the default configuration file and command services start, please do the following questions:
Please use a tar package an entire / etc / directory
Solution: Specifications: Do not pack for an absolute path
[root@xk0218 ~]# cd /
[root@xk0218 /]# tar zcf /opt/etc.tar.gz ./etc/
b a set of archive into the / tmp file folders
[root@xk0218 etc]# tar xf /opt/etc.tar.gz -C /tmp/
10 Please write linux command line shortcuts and shortcuts vim long used
tab completion
ctrl + a beginning
end ctrl + e
Current procedures ctrl + c terminal
ctrl + d to exit the current window
ctrl + z to suspend the current program
ctrl + l clear screen