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Full Discussion: echo ${PWD#${PWD%/*/*}/}
Top Forums UNIX for Advanced & Expert Users echo ${PWD#${PWD%/*/*}/} Post 302215328 by Tytalus on Wednesday 16th of July 2008 05:40:54 AM
Old 07-16-2008
Have a look at:

Bash Reference Manual

and here,

Code:
echo ${PWD#${PWD%/*/*}/}

is 
echo ${PWD#X/}

where X = ${PWD%/*/*}

i.e it's a split in a split....

 

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PWD(1)								   User Commands							    PWD(1)

NAME
pwd - print name of current/working directory SYNOPSIS
pwd [OPTION]... DESCRIPTION
Print the full filename of the current working directory. -L, --logical use PWD from environment, even if it contains symlinks -P, --physical avoid all symlinks --help display this help and exit --version output version information and exit NOTE: your shell may have its own version of pwd, which usually supersedes the version described here. Please refer to your shell's docu- mentation for details about the options it supports. AUTHOR
Written by Jim Meyering. REPORTING BUGS
Report pwd bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> Report pwd translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
getcwd(3) 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 info coreutils 'pwd invocation' should give you access to the complete manual. GNU coreutils 8.5 February 2011 PWD(1)
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