Bash Scripting - Text Processing in Scripts
What is the output of the following command?
grep 'world' <<< "hello world"
What is the output of the following command?
medium📝 Command Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Understand grep with here string input
The here string sends "hello world" as input to grep. Grep searches for lines containing 'world'.Step 2: Determine grep output
The entire line "hello world" contains 'world', so grep outputs the full line.Final Answer:
hello world -> Option DQuick Check:
grep outputs matching lines = hello world [OK]
Quick Trick: grep prints full matching lines from input [OK]
Common Mistakes:
MISTAKES- Expecting only the matched word
- Confusing grep output with cut or awk
- Thinking here string changes grep behavior
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