Ubuntu - Bash Tutorial

ls -l
      cd ~/Documents
      pwd

List files, change directory, and show current location

touch newfile.txt
      mkdir project
      cp file1.txt project/

Create files, directories, and copy files between locations

ps aux
      kill 1234
      top

View processes, terminate processes, and monitor system resources

grep "search" file.txt
      sed 's/old/new/g' file.txt
      cat file.txt | sort | uniq -c

Search text, perform substitutions, and count unique lines

#!/bin/bash
# Simple script template
echo "Hello, $USER!"

Create executable bash scripts with basic syntax

Ubuntu Bash Tutorial