一个简单的linux命令——pwd

pwd [option]

常用范例：

命令：
pwd

输出：
[root@localhost ~]# pwd
/root
[root@localhost ~]#

命令：
pwd -P

输出：
[root@localhost soft]# cd /etc/init.d
[root@localhost init.d]# pwd
/etc/init.d
[root@localhost init.d]# pwd -P
/etc/rc.d/init.d

特性：当前目录被删除了，而pwd命令仍然显示那个目录

[root@localhost init.d]# cd /opt/soft
[root@localhost soft]# mkdir removed
[root@localhost soft]# cd removed/
[root@localhost removed]# pwd
/opt/soft/removed
[root@localhost removed]# rm ../removed -rf
[root@localhost removed]# pwd
/opt/soft/removed
[root@localhost removed]# /bin/pwd
/bin/pwd: couldn't find directory entry in “..” with matching i-node
[root@localhost removed]# cd
[root@localhost ~]# pwd
/root
[root@localhost ~]#