Bash Shell Scripting- Exit Status of a Command

The video tutorial explains the concept of exit status in Linux commands, which indicates whether a command was executed successfully or failed. A status of zero means success, while a non-zero status indicates an error. The tutorial demonstrates how to check the exit status using the $? variable and how to store it in a custom variable. It provides practical examples, such as searching for a file and understanding common exit codes like 127 for command not found and 1 for execution errors.

What does a status of zero indicate when executing a Linux command?

How can you check the exit status of the last executed command in the shell?

What does a non-zero exit status signify about a command execution?

How can you store the exit status of a command into a variable?

Explain the significance of checking the exit status after running a command.

What does an exit status of 127 indicate?

What does an exit status of 2 represent in command execution?