what is the right syntax ??


 
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# 8  
Old 06-04-2007
Quote:
Originally Posted by convenientstore
I also see below working to better solution.. but what does \(/\|$\) do??

\( \) is backreferenceing 1 that I understand but what is /\|$ do??

sed -e "s;^/home/$dir1\(/\|$\);/home/$dir2\1;"
Forget this solution, it is not supported by all the versions of sed.
The same thing:
Code:
sed -e "s;^/home/$dir1/;/home/$dir2/;;s^/home/$dir1\$;/home/$dir2;"

Jean-Pierre.
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UNBURDEN-HOME-DIR(1)						   User Commands					      UNBURDEN-HOME-DIR(1)

NAME
unburden-home-dir - unburdens home directories from caches and trashes SYNOPSIS
unburden-home-dir [ -n | -u | -f filter ] unburden-home-dir ( -h | --help | --version ) DESCRIPTION
unburden-home-dir unburdens the home directory from files and directory which cause high I/O or disk usage but are neither important if they are lost, e.g. caches or trash directory. When being run it moves the files and directories given in the configuration file to a location outside the home directory, e.g. /tmp or /scratch, and puts appropriate symbolic links in the home directory instead. OPTIONS
-f just unburden those directory matched by the given filter (a perl regular expression) -- matches the already unburdened directories if used together with -u. -F Do not check for files in use with lsof before (re)moving files. -n dry run (show what would be done) -u undo (reverse the functionality and put stuff back into the home directory) -h, --help show this help --version show the program's version EXAMPLES
Example configuration files can be found at /usr/share/doc/unburden-home-dir/examples on Debian-based systems and in the etc/ directory of the source tar ball. FILES
/etc/unburden-home-dir, /etc/unburden-home-dir.list, ~/.unburden-home-dir, ~/.unburden-home-dir.list, /etc/default/unburden-home-dir, /etc/X11/Xsession.d/95unburden-home-dir Read /usr/share/doc/unburden-home-dir/README on debianoid installations or README in the source tar ball for an explanation of these files. SEE ALSO
corekeeper (http://openvswitch.org/cgi-bin/gitweb.cgi?p=corekeeper), autotrash(1), agedu(1), bleachbit(1). For du(1)-like but more comfortable tools, see ncdu(1) (text-mode), baobab(1) (GNOME), filelight(1) (KDE), xdiskusage(1) (X tool calling du(1) itself), or xdu(1) (X tool reading du(1) output from STDIN). AUTHOR
Unburden Home Dir is written and maintained by Axel Beckert <beckert@phys.ethz.ch> LICENSE
Unburden Home Dir is available under the terms of the GNU General Public License (GPL) version 2 or any later version at your option. Unburden Home Directory May 2012 UNBURDEN-HOME-DIR(1)