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--- bash_-_scripts:tree [2016/11/09 11:50] – peter
+++ bash_-_scripts:tree [2019/11/29 11:18] (current) – removed peter
@@ Line 1: / Line 1: @@
-====== Bash - Scripts - Tree ======
-Finds all the files in the file tree and displays the file names fishing, showing the hierarchical file tree.
-Tree, searches all file tree and prints the names of all files in a visual tree format.  It recursively searches in each directory and finds all files, thus providing global inspection of files and their nested depth structure.
-===== Usage =====
-<code bash>
-tree [dir]
-</code>
-Example call:
-<code bash>
-tree $HOME
-</code>
-===== Code =====
-<code bash>
-#!/bin/bash
-#
-# @ (#) tree v1.0 Visual display of a file tree
-# output to a file tree structure screen
-#
-if [ "$#" -gt 1]
-then echo "tree: wrong arg count"> & 2
-echo "usage: tree [dir]"> & 2
-exit 2
-fi
-if [ "$#" -eq 1]
- then if [! -d $1]
- then echo "$0: $1 not a directory"> & 2
- echo "usage: tree [dir]"> & 2
- exit 2
- fi
-fi
-find $ {1: -.} -print | sort | sed -e "1p" -e "1d" \
- -e "s | [^ /] * / | / | g" \
- -e "s | [^ * / | / |" \
- -e "s | / \ ([^ /] * \) $ | \ 1 |"
-</code>
-===== Example Usage =====
-This uses an implicit directory (the current directory) as the beginning of the file tree.
-<code bash>
-tree
-</code>
-Print the tree listing for each file of the entire system.
-<code bash>
-tree /
-</code>
-This shows the tree-format for all other users system (assuming that all user directories are the same directory, such as /usr/*).
-<code bash>
-tree $HOME / ..
-</code>
-===== Test =====
-Consider the example of a directory structure.  Let the root directory to /tmp with two directories: a and b.  The catalog is a subdirectories
-log aa, which contains the file1 file directory and b, respectively, subdirectory bb, containing file file2.
-The **find** command will give a printout like this:
-<code bash>
-find /tmp -print
-</code>
-Result
-<code>
-/tmp
-/tmp/a
-/tmp/a/aa
-/tmp/a/aa/file1
-/tmp/b
-/tmp/b/bb
-/tmp/b/bb/file2
-</code>
-As can be seen from this listing, the files a and aa are directories and file file1 is located at the bottom of the file tree.
-Now compare this result with the results of the **tree** script.
-<code bash>
-tree /tmp
-</code>
-Result
-<code>
-/tmp
-/a
-//aa
-///file1
-/b
-//bb
-///file2
-</code>