Bash Scripting - Error Handling
Which bash variable holds the exit code of the last executed command?
Which bash variable holds the exit code of the last executed command?
easy🧠 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall special bash variables
Bash uses special variables for different purposes: $? for last exit code, $! for last background PID, $# for argument count, $$ for current PID.Step 2: Identify the exit code variable
The variable $? stores the exit code of the last command executed.Final Answer:
$? -> Option DQuick Check:
Exit code variable = $? [OK]
Quick Trick: Use $? to check last command's success or failure [OK]
Common Mistakes:
MISTAKES- Using $! instead of $?
- Confusing with $$ or $#
Master "Error Handling" in Bash Scripting
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Bash Scripting Quizzes