What is wrong with this command if the goal is to redirect both stdout and stderr to log.txt?:

medium📝 Troubleshoot Q7 of 15

Bash Scripting - Error Handling

What is wrong with this command if the goal is to redirect both stdout and stderr to log.txt?:

command &> log.txt

AThe '&>' operator is not supported in all shells, causing compatibility issues

BThe filename must be preceded by a dash '-'

CThe command should use '2>&1 > log.txt' instead

DThe command is missing a semicolon at the end

Step-by-Step Solution

Solution:

Step 1: Understand '&>' operator
'&>' redirects both stdout and stderr but is a bash extension.
Step 2: Identify compatibility issue
Not all shells (like sh) support '&>', so it may fail.
Final Answer:
The '&>' operator is not supported in all shells, causing compatibility issues -> Option A
Quick Check:
Use portable syntax for compatibility [OK]

Quick Trick: Avoid &> for portability; use > file 2>&1 instead [OK]

Common Mistakes:

MISTAKES

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