"ls -R | grep a�o:$a�� | sed -e a��s/:$//' -e..."

a�ols -R | grep a�o:$a�� | sed -e a��s/:$//' -e a��s/[^-][^\/]*\//-/g' -e a��s/^/ /' -e a��s/-/|/'a��

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ls + grep + sed =A�tree

Stick it in tree.sh, then alias tree='sh tree.sh', and ta-da! You can now see your directories as a graphical tree on any system!

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