47 lines
2.0 KiB
Bash
47 lines
2.0 KiB
Bash
#!/bin/sh
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#######################################################
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# UNIX TREE #
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# Version: 2.2 #
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# By Dem Pilafian #
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# File: ~/apps/tree/tree.sh #
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# #
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# Displays Structure of Directory Hierarchy #
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# ------------------------------------------------- #
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# This tiny script uses "ls", "grep", and "sed" #
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# in a single command to show the nesting of #
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# sub-directories. #
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# #
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# Setup: #
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# % cd ~/apps/tree #
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# % chmod u+x tree.sh #
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# % ln -s ~/apps/tree/tree.sh ~/bin/tree #
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# #
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# Usage: #
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# % tree [directory] #
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# #
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# Examples: #
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# % tree #
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# % tree /etc/opt #
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# % tree .. #
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# #
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# Public Domain Software -- Free to Use as You Like #
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# http://www.centerkey.com/tree #
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#######################################################
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echo
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if [ "$1" != "" ] #if parameter exists, use as base folder
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then cd "$1"
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fi
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pwd
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ls -R | grep ":$" | \
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sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/'
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# 1st sed: remove colons
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# 2nd sed: replace higher level folder names with dashes
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# 3rd sed: indent graph three spaces
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# 4th sed: replace first dash with a vertical bar
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if [ `ls -F -1 | grep "/" | wc -l` = 0 ] # check if no folders
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then echo " -> no sub-directories"
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fi
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echo
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exit |