Category Archives: one-liners

Pre-loading debconf values for easy installation

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Debian’s configuration management might take some getting used to, but after you learn your way around /etc/{default,init.d,} it makes good sense.

Now when you have to do the same thing over and over again (ever said yes 25 times to Sun’s java license?), or you find that after a dist-upgrade your ldap configurations are gone because you pressed ‘enter’ one too many times…; you could either keep lots of tarballs or digg deeper. The latter could be done with debconf. Debconf keeps all answers to questions packages can ask during installation, both the ones you gave yourself and the implied or low-priority ones chosen by the packager.

You can set those values yourself quite easily, once you know how.
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svn move multiple directories with confirm

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I had to rearrange multiple directories, but not all, in a svn tree to make a project more compatible with Eclipse. For this I used the following one-liner so I could do this more easily.

for file in `find -maxdepth 1 -type d`; do \
echo -n $file "[y/n] "; \
read -n 1 shouldMove ; \
if [ "$shouldMove" == "y" ]; \
then \
svn mv `basename $file` WebContent/`basename $file`; \
fi; \
done

This way I was sure all directories I wanted to move were moved (since a svn mv does not remove the directory right away, it does that on commit).