[ TIL ] Operating System | Navigating Directories

Linux Directories Under Root Directory

• bin -> similar to C:\Program Files directory in Windows
  commands like ls is in this directory.
  

• etc -> stores important system configuration files

• home -> personal directory for users
  similar to C:\Users directory.

• proc -> stores information about currently running processes.

• var -> stores system logs and files that constantly changes

Flags

Every Commands has flags.
Use --help to see flags.
Use man to see manual.

Display Files

Less

less 경로/파일네임
up and down -> scroll
g -> beginning
G -> end
/{word} -> search
q -> quit

head

show first 10 lines

tail

show last 10 lines

Text Editors

Nano, Vim, Emacs

Search in Files

grep {word} {file}

Pipeline

use | to use multiple commands
ex ) ls -la ./ | grep helloworld

Redirector Operator

• 1 -> stdout
  [standard output] > [file.txt]
• 2 -> stderr
  [error message] 2> [error.txt]