[Solved] In bash scripting, what does the operator 2>&1 achieve when used in a command? - Ans: Redirects standard error (stderr) to the same destination as standard output... | Bash Scripting

Bash Scripting - Error Handling

In bash scripting, what does the operator 2>&1 achieve when used in a command?

ARedirects standard input (stdin) to standard error (stderr)

BRedirects standard output (stdout) to a file named '1'

CRedirects both stdout and stderr to separate files

DRedirects standard error (stderr) to the same destination as standard output (stdout)

Step-by-Step Solution

Solution:

Step 1: Understand file descriptor numbers in bash
File descriptor 1 is stdout, and 2 is stderr in bash.
Step 2: Analyze the redirection operator '2>&1'
This means redirect stderr (2) to wherever stdout (1) is currently going.
Final Answer:
Redirects standard error (stderr) to the same destination as standard output (stdout) -> Option D
Quick Check:
2>&1 = Redirect stderr to stdout [OK]

Quick Trick: 2>&1 merges error output into standard output stream [OK]

Common Mistakes:

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In bash scripting, what does the operator 2>&1 achieve when used in a command?