命令简介：
该命令用来显示目前所在的工作目录。指令英文原义：print work directory
执行权限 ：All User
指令所在路径：/usr/bin/pwd 或 /bin/pwd
命令语法：
pwd [OPTION]...
命令参数：
| 参数 | 长参数 | 描叙 |
| -L | --logical（无效） | 当目录为连接路径时，显示连接路径 |
| -P | --physical（无效） | 显示实际物理路径，而非使用连接（link）路径 |
| --help | 显示命令在线帮助（该参数无法使用） | |
| --version | 显示命令版本信息（该参数无法使用） |
使用示例：
1：查看pwd命令的帮助信息
1: root@DB-Server init.d]# man pwd
2: PWD(1) User Commands PWD(1) 3: 4: NAME 5: pwd - print name of current/working directory 6: 7: SYNOPSIS 8: pwd [OPTION]... 9: 10: DESCRIPTION 11: Print the full filename of the current working directory. 12: 13: -L, --logical 14: use PWD from environment, even if it contains symlinks
15: 16: -P, --physical 17: avoid all symlinks 18: 19: --help display this help and exit 20: 21: --version 22: output version information and exit 23: 24: NOTE: your shell may have its own version of pwd, which usually supersedes the version described here. Please refer to your shell鈥檚 documentation for details about the
25: options it supports. 26: 27: AUTHOR 28: Written by Jim Meyering. 29: 30: REPORTING BUGS 31: Report bugs to <bug-coreutils@gnu.org>. 32: 33: COPYRIGHT 34: Copyright 漏 2006 Free Software Foundation, Inc. 35: This is free software. You may redistribute copies of it under the terms of the GNU General Public License <http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to 36: the extent permitted by law. 37: 38: SEE ALSO 39: The full documentation for pwd is maintained as a Texinfo manual. If the info and pwd programs are properly installed at your site, the command
40: 41: info pwd 42: 43: should give you access to the complete manual. 44: 45: pwd 5.97 May 2011 PWD(1) 46: (END) 47: 2：显示当前目录所在路径 pwd
1: [root@DB-Server networking]# pwd
2: /etc/sysconfig/networking
3：显示当前目录的物理路径 pwd –P
1: [root@DB-Server init.d]# cd /etc/init.d
2: [root@DB-Server init.d]# pwd -P
3: /etc/rc.d/init.d
4: 显示当前目录的连接路径：pwd -L
1: [root@DB-Server networking]# cd /etc/init.d
2: [root@DB-Server init.d]# pwd -L
3: /etc/init.d 4: [root@DB-Server init.d]# pwd
5: /etc/init.d