orientation in system - command tree

Linux has some commands to good orientation in system. Let me show the command tree!

Theory:

How it works?

tree + PATH (Please use absolute PATH)




Examples from Operation system Linux: 



1) only tree tree

root@guliverkel:/home/martin# tree /etc/ssh/
/etc/ssh/
├── moduli
├── ssh_config
├── sshd_config
├── ssh_host_ecdsa_key
├── ssh_host_ecdsa_key.pub
├── ssh_host_ed25519_key
├── ssh_host_ed25519_key.pub
├── ssh_host_rsa_key
└── ssh_host_rsa_key.pub

0 directories, 9 files

2) tree with last modification of files: tree -D 

root@guliverkel:/home/martin# tree -D /etc/ssh/
/etc/ssh/
├── [Aug 21  2018]  moduli
├── [Aug 21  2018]  ssh_config
├── [Jul 15  2019]  sshd_config
├── [May  8 23:52]  ssh_host_ecdsa_key
├── [May  8 23:52]  ssh_host_ecdsa_key.pub
├── [May  8 23:52]  ssh_host_ed25519_key
├── [May  8 23:52]  ssh_host_ed25519_key.pub
├── [May  8 23:52]  ssh_host_rsa_key
└── [May  8 23:52]  ssh_host_rsa_key.pub

0 directories, 9 files
root@guliverkel:/home/martin#

3) tree with permissions: 


root@guliverkel:/home/martin# tree -pD /etc/ssh/
/etc/ssh/
├── [-rw-r--r-- Aug 21  2018]  moduli
├── [-rw-r--r-- Aug 21  2018]  ssh_config
├── [-rw-r--r-- Jul 15  2019]  sshd_config
├── [-rw------- May  8 23:52]  ssh_host_ecdsa_key
├── [-rw-r--r-- May  8 23:52]  ssh_host_ecdsa_key.pub
├── [-rw------- May  8 23:52]  ssh_host_ed25519_key
├── [-rw-r--r-- May  8 23:52]  ssh_host_ed25519_key.pub
├── [-rw------- May  8 23:52]  ssh_host_rsa_key
└── [-rw-r--r-- May  8 23:52]  ssh_host_rsa_key.pub

0 directories, 9 files


Please study:

https://www.geeksforgeeks.org/tree-command-unixlinux/

This article in slovak language: https://zapiskylinuxadmina.blogspot.com/2020/05/tree-ako-strom-vo-filesysteme.html