大连理工大学企业级服务器系统管理基础课件第7章 定制用户环境.pptVIP

* Dalian University of Technology * 第7章 定制用户环境 内容概要 描述login profile（登陆环境）的作用 更改 PATH 与 PS1 变量 使用shell history（历史命令）机制 设置 aliases（别名） 来使用常用命令 $HOME/.kshrc login: team01 team01s Password: $ /etc/environment /etc/profile $HOME/.profile root root User 登陆环境文件 User /etc/environment 举例 $ cat /etc/environment # WARNING: This file is only for establishing # environment variables. Execution of commands # from this file or any lines other than specified # above may cause failure of the initialization # process. PATH=/usr/bin:/etc:/usr/sbin:/usr/ucb:/usr/bin/X11:/sbin:/usr/java131/jre/bin:/usr/java131/bin TZ=EST5EDT LANG=en_US LOCPATH=/usr/lib/nls/loc NLSPATH=/usr/lib/nls/msg/%L/%N:/usr/lib/nls/msg/%L/%N.cat /etc/profile 举例 $ cat /etc/profile # System-wide profile. All variables set here may be overridden by # a users personal .profile file in their $HOME directory. However # all commands here will be executed at login regardless. trap 1 2 3 readonly LOGNAME # Automatic logout (after 120 seconds inactive) TMOUT=120 # The MAILMSG will be printed by the shell every MAILCHECK seconds # (default 600) if there is mail in the MAIL system mailbox. MAIL=/usr/spool/mail/$LOGNAME MAILMSG=[YOU HAVE NEW MAIL] # If termdef command returns terminal type (i.e. a non NULL value), # set TERM to the returned value, else set TERM to default lft. TERM_DEFAULT=lft TERM=`termdef` TERM=${TERM:-$TERM_DEFAULT} export LOGNAME MAIL MAILMSG TERM TMOUT trap 1 2 3 LOGNAME 该变量保存用户的用户名. 能够被很多命令读取. 无法改变该变量的值 (只读变量) TMOUT 该变量保存登陆系统前无任何操作，终端自动退出的时间值 MAIL 该变量保存用户存储邮件的文件名 TERM 用户所使用的终端类型. 该变量由定向显示的应用所使用，例如vi或者smit 环境变量 (1 of 2) 每次启动新的Korn Shell都会执行该文件。 .profile 举例 $ cat .profile PATH=/usr/bin:/etc:/usr/sbin:/