[翻译中]zsJacky Linux pwd command - Know Your Current Working Directory ================================================================================ Where you are inside a deep directory, sometimes you may want to know where exactly you are. With this pwd command, you can do it. ### What is pwd ### Pwd is a command to print name of current / working directory. When we are “lost” into a deep directory, we can always reveal where we are. ### How to use it ### Since pwd command is intended to only print name of current / working directory, pwd does not have a lot of parameter to add. To use it, you just can type : $ pwd And it will print where you are. For a shell like bash, sometimes this information already print after host-name. Take a look at below picture.  As you can see above, the **/lib/udev/rules.d** is printed a hostname. When we type pwd, it will print **/lib/udev/rules.d** again. But when you are using another shell such as **csh**, pwd may help you to tell where are you. Here’s a sample of it. % pwd  ### Print physical directory avoid all symlinks ### When you are in directory which is a symbolic links to another directory, you will find that pwd will print the alias / symbolic links to it. To print the real directory name, we can use **-P** parameter. $ pwd -P    At the screenshot above, we are change the directory to **PlayOnLinux’s virtual drives**. This directory is located in **/home/pungki** and its a symbolic link to wineprefix directory. When we do pwd command, the shell return **/home/pungki/PlayOnLinux’s virtual drives**. But if we add **-P** parameter, the we will know that the real directory is **/home/pungki/.PlayOnLinux’s/wineprefix** ### Reveal which pwd ### On bash shell, pwd may already built-in inside it. To know it, we can use this command : $ type -a pwd  You see that there are **two** pwd’s. When you use pwd, you may use the built-in pwd command on your shell. This pwd will override the original pwd. Here’s a sample.  On the screenshot above, we are now inside **/home/pungki./PlayOnLinux/wineprefix**. When we use **/bin/pwd**, it will return the real name of current directory. But when we add **-L** parameter, it will return a symbolic link name of current directory. This **-L** parameter output the same result if we just type pwd, which use built-in shell pwd. ### Print pwd version ### To print pwd version, we can use **--version** parameter. But for bash shell, we need to use **/bin/pwd** instead of pwd. Otherwise, it will return an error message.  ### Conclusion ### pwd may help you to know where your current directory when your bash don’t print it directly on command prompt. As usual, you can always type **man pwd** to explore pwd usage more detail. -------------------------------------------------------------------------------- via: http://linoxide.com/linux-command/linux-pwd-command/ 译者:[zsJacky](https://github.com/译者ID) 校对:[校对者ID](https://github.com/校对者ID) 本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译,[Linux中国](http://linux.cn/) 荣誉推出