Bash Tutorial for Beginners #5: Exit Status $? Explained | 0, 1, 2 & 127

What is exit status in Bash? In this beginner-friendly Linux Bash tutorial, we explain how Bash uses exit status to determine whether a command succeeded or failed. In this video, you'll learn: What is exit status in Bash? What does the $? variable mean? Why 0 means success Why non-zero values mean failure What exit status 1 can mean What exit status 2 can mean Why Bash commonly uses 127 for “command not found” How to check the exit status of a command Practical examples using ls How $? changes after each command #Linux #Bash #LinuxForBeginners #BashScripting #LinuxTutorial #LinuxCommands #ShellScripting #ExitStatus #BashProgramming #LinuxBasics