aix系统应用基础02usingthesystem

1、course materials may not be reproduced in whole or in part without the prior written permission of ibm.5.04.1 copyright ibm corporation 2008unit 2using the system copyright ibm corporation 2008unit objectivesafter completing this unit, you should be able to:log in and out of the systemstate the stru

2、cture of aix commandsexecute basic aix commandsuse aix commands to communicate with other users copyright ibm corporation 2008logging in and outlto log in:lto log out:login: team01team01s password: (the password does not appear)$ (or)$ exit(or)$ logoutlogin: copyright ibm corporation 2008passwordslc

3、reating or changing:$ passwdchanging password for team01team01s old password:team01s new password:enter the new password again:$ copyright ibm corporation 2008command format aix commands have the following format:$ command option(s) argument(s) $ ls$ ls l$ ls /dev$ ls l /dev copyright ibm corporatio

4、n 2008there are exceptions!command format exampleswrong:1. separation:$ mail - f newmail$ who-u2. order:$ mail newmail -f$ team01 mail$ -u who3. multiple options:$ who -m-u$ who -m u4. multiple arguments:$ mail team01team02right:1. separation:$ mail -f newmail$ who -u2. order:$ mail -f newmail$ mail

5、 team01$ who -u3. multiple options:$ who -m -u$ who -mu4. multiple arguments:$ mail team01 team02 copyright ibm corporation 2008the date and cal commandslchecking the date:llooking at a month:llooking at a year:$ datewed nov 14 10:15:00 gmt 2007$ cal 1 2003 january 2003sun mon tue wed thu fri sat 1

6、2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31$ cal 2007 copyright ibm corporation 2008the clear, echo, and banner commandslclear: clears the terminal screenlecho: writes what follows to the screenlbanner: writes character strings in large letters to the screen $ c

7、lear$ echo lunch is at 12:00lunch is at 12:00$ banner hello copyright ibm corporation 2008activity: questions and answers1. whats wrong with the following commands?$ du -s k_$ df-k_$ du -a-k_2. which command . changes your password?_. clears the screen?_. prints out the current system date?_. exits

8、the current shell?_ copyright ibm corporation 2008the who and finger commandslfinding who is on the system: lfinding who you are:ldisplaying information about the users currently logged on:$ whorootlft0 sept 4 14:29team01pts/0sept 4 17:21$ who am iteam01pts/0sept 4 17:21$ whoamiteam01$ finger team02

9、login name: team02directory: /home/team02shell: /usr/bin/kshon since mar 04 16:17:10 on tty3no plan. copyright ibm corporation 2008sending mail$ mail team01subject:meetingthere will be a brief announcement meeting todayin room 602 at noon.cc: $ mail team20sys2subject: dont forget!dont forget about t

10、he meeting today!cc: $ copyright ibm corporation 2008receiving mailyou have new mail$ mailmail 5.2 ucb aix5.x type ? for help/var/spool/mail/team01: 2 messages 1 new u 1 team05 tue jan 7 10:50 10/267 hello !n 2 team02 wed jan 8 11:25 16/311 meeting? t 2from team02 wed jan 8 11:25 2003date: wed 8 jan

11、 2003 11:25from: team02to: team01subject: meetingcc:there will be a brief announcement meeting today in room 602 at noon.? d(delete message)? q(quit mail command) copyright ibm corporation 2008the write and wall commandslsend messages to other users on a system write provides conversation-like commu

12、nication with another logged-in user. each user alternatively sends and receives messages. the wall command writes to all terminals. this is useful to notify all users of a system event:$ write team01 (or)$ write sarahmoon$ wall the system will be inactive from 10pm today.broadcast message from team

13、01sys1 (pts/1) at 15:11:58the system will be inactive from 10pm today.$ copyright ibm corporation 2008$ talk fred (user john requests the connection)(to accept the invitation fred enters:)talk with another user copyright ibm corporation 2008mesglthe mesg command controls whether other users on the s

14、ystem can send messages to you:team01$ mesgthe current status is y.team01$ mesg nteam01$team02$ write team01write: 0803-031 permission denied.team02$ copyright ibm corporation 2008corrects mistakesterminates the currentcommand and returns to theshellend of transmission or end of filetemporarily stop

15、s output tothe screenresumes output (stopped by ctrl-s)erases the entire linekeyboard tips copyright ibm corporation 2008checkpoint1. what is the correct command syntax in aix?$ mail newmail f$ mail f newmail$ -f mail$ mail -f newmail2. what command would you use to send mail items? 3. what are othe

16、r commands that can be used to communicate with other users? 4. what output would you expect from the following command: cal 8? 5. which command would you use to find out when a particular user logged in?$ who am i$ who$ finger everyone$ finger username copyright ibm corporation 2008checkpoint solut

17、ions1. what is the correct command syntax in aix?$ mail newmail f$ mail f newmail$ -f mail$ mail -f newmail2. what command would you use to send mail items? mail username3. what are other commands that can be used to communicate with other users? talk, write, and wall4. what output would you expect from the following command: cal 8? the calendar for the year 8 ad5. which command would you use to find out when a particular user logged in?$ who am i$ who$ finger everyone$ finger username copyright ibm corporation 2008exercise: using the system copyright ibm corporation 200