CentOS directory structure as tree?

Question

Is there an equivalent to tree on CentOS?

score 48 · Answer 1 · answered Oct 09 '12 at 02:02

If tree is not installed on your Centos system (I typically recommend server setups to use minimal install disk anyhow) you should type the following at your command line:

# yum install tree -y

If this doesn't install it's because you don't have the proper repository. I would use the Dag Wieers repository:

http://dag.wieers.com/rpm/FAQ.php#B

After that you can do your install:

# yum install tree -y

Now you're ready to roll. Always read the man page: http://linux.die.net/man/1/tree

So quite simply the following will return a tree:

# tree

Alternatively you can output this to a text file. There's a ton of options too.. Again, read your man page if you're looking for something other than default output.

# tree > recursive_directory_list.txt

(^^ in a text file for later review ^^)

-y means yes. Install thing and don’t prompt me to ask if I want to proceed with the installation. — Lou Grossi, Feb 08 '22 at 02:50

score 18 · Answer 2 · answered Apr 20 '11 at 15:30

18

You can make your own primitive "tree" ( for fun :) )

#!/bin/bash
# only if you have bash 4 in your CentOS system
shopt -s globstar
for file in **/*
do
    slash=${file//[^\/]}
    case "${#slash}" in
        0) echo "|-- ${file}";;
        1) echo "|   |--  ${file}";;
        2) echo "|   |   |--  ${file}";;
    esac
done

answered Apr 20 '11 at 15:30

bash-o-logist

6,665
1
17
14

Thanks man, en lieu of Carlos's answer I'll add this to my .bash_profile – nsfyn55 Apr 20 '11 at 15:40
double blah they are running bash 3 – nsfyn55 Apr 20 '11 at 15:41
And if you want to add color: https://stackoverflow.com/questions/5947742/how-to-change-the-output-color-of-echo-in-linux – Robert Houghton Feb 05 '20 at 21:08

score 11 · Answer 3 · answered Nov 28 '17 at 01:33

Since tree is not installed by default in CentOS ...

[user@CentOS test]$ tree
-bash: tree: command not found
[user@CentOS test]$

You can also use the following ls command to produce almost similar output with tree

ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/   /' -e 's/-/|/'

Example:

[user@CentOS test]$ ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/   /' -e 's/-/|/'
   .
   |-directory1
   |-directory2
   |-directory3
[user@CentOS directory]$

Nice! How would one edit this to also show filenames? – KrNeki Dec 10 '19 at 16:13 — KrNeki, Dec 10 '19 at 16:13

score 11 · Accepted Answer · edited Aug 29 '19 at 16:28

11

As you can see here. tree is not installed by default in CentOs, so you'll need to look for an RPM and install it manually

edited Aug 29 '19 at 16:28

Nicolas Papoutsis

45
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11

answered Apr 20 '11 at 15:25

Carlos Tasada

4,438
1
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26

blah...not my server. Thanks though – nsfyn55 Apr 20 '11 at 15:39
4

The link is broken. The answer below works: sudo yum install tree -y – zhihong Apr 13 '18 at 09:24

score 6 · Answer 5 · answered Jul 28 '12 at 21:27

6

You have tree in the base repo.

Show it (yum list package-name):

# yum list tree
Available Packages
tree.i386               1.5.0-4               base

Install it:

yum install tree

(verified on CentOS 5 and 6)

answered Jul 28 '12 at 21:27

Mattias Ohlsson

169
2
4

score 0 · Answer 6 · answered Jun 11 '21 at 21:00

I need to work on a remote computer that won't allow me to yum install. So I modified bash-o-logist's answer to get a more flexible one.

It takes an (optional) argument that is the maximum level of subdirectories you want to show. Add it to your $PATH, and enjoy a tree command that doesn't need installation.

I am not an expert in shell (I had to Google a ton of times just for this very short script). So if I did anything wrong, please let me know. Thank you so much!

#!/bin/bash
# only if you have bash 4 in your CentOS system

shopt -s globstar # enable double star

max_level=${1:-10}

for file in **
do
    # Get just the folder or filename
    IFS='/'
    read -ra ADDR <<< "$file"
    last_field=${ADDR[-1]}
    IFS=' '

    # Get the number of slashes
    slash=${file//[^\/]}
    
    # print folder or file with correct number of leadings
    if [ ${#slash} -lt $max_level ]
    then
        spaces="   "
        leading=""
        if [ "${#slash}" -gt 0 ]
        then
            leading=`eval $(echo printf '"|${spaces}%0.s"' {1..${#slash}})`
        fi
        echo "${leading}|-- $last_field"
    fi
done

CentOS directory structure as tree?

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