Which of the following is the correct syntax to search for the word "error" in a file named log.txt using grep?

easy📝 Syntax Q12 of 15

Bash Scripting - Text Processing in Scripts

Which of the following is the correct syntax to search for the word "error" in a file named log.txt using grep?

Agrep -f error log.txt

Bgrep error log.txt

Cgrep log.txt error

Dgrep -c log.txt error

Step-by-Step Solution

Solution:

Step 1: Identify grep syntax
The correct syntax is grep [pattern] [file]. So, searching for "error" in "log.txt" is grep error log.txt.
Step 2: Check other options
grep -f error log.txt uses -f which expects a file of patterns, not a pattern string. Options C and D have arguments reversed or wrong flags.
Final Answer:
grep error log.txt -> Option B
Quick Check:
grep pattern file = correct syntax [OK]

Quick Trick: Remember: grep pattern filename [OK]

Common Mistakes:

MISTAKES

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