UNIX系统常用命令(3)

UNIX系统常用命令

建议: 从安全角度出发,关闭r系列服务.

1.3. telnet

telnet remotehost [port]

相关文件:

/etc/inetd.conf文件中的telnet服务.

/etc/

TIPS: strings /usr/sbin/in.telnetd |egrep issue

1.4. passwd 更改口令

1.5 exit 退出当前shell

2. 命令或文件的查找

相关shell变量:

csh/tcsh: $path

.cshrc set path=(/usr/bin /usr/local/bin $path)

sh/bash: $PATH

.profile .bash_profile

PATH=/usr/local/bin:$PATH; export PATH

2.1 which

Syntax: which command

which为bash/tcsh内带命令

[hbwork@toshiba]$ which which

which: shell built-in command.

2.2 where(tcsh)

Syntax: where command

2.3 locate (LINUX)

Syntax: locate filename

相关命令: updatedb更改locate文件名数据库

3. 查看命令的用法

man

相关文件:

/etc/man.config