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What is difference between pwd and .

 
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# 1  
Old 06-16-2011
What is difference between pwd and .
Difference between pwd (present working directory) and . (current working directory).
Last edited by dhami111; 06-16-2011 at 10:37 AM..
# 2  
Old 06-16-2011
pwd is a command which prints the working directory. PWD is an environmental variable in the bash shell which allows you to determine the cwd in a script without resorting to calling the pwd command (OLDPWD is the previous working directory used by cd -).

. is a way of addressing the current working directory in a shell, however it is a relative path rather than an absolute one, both have their place.
# 3  
Old 06-16-2011
The filename . (dot) represents the current working directory. The pwd command displays the absolute pathname of the current working directory to the computer screen. Use the -P option to display the physical current working directory (all symbolic links resolved).
E.g. The directory /opt/strs4-hertog/log is a symbolic link to /opt/civision/spool/streamserve
Code:
# cd /opt/strs4-hertog/log
# pwd
/opt/strs4-hertog/log
# pwd -P
/opt/civision/spool/streamserve

Last edited by Yogesh Sawant; 06-16-2011 at 06:44 PM.. Reason: added code tags
 
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