Bash Scripting - Text Processing in Scripts
What is the output of the following command?
grep 'test' <<< "this is a test line"
What is the output of the following command?
medium📝 Command Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand grep with here string
The here string sends "this is a test line" as input to grep, which searches for 'test'.Step 2: Determine grep output
Since 'test' is found in the input line, grep outputs the entire matching line.Final Answer:
this is a test line -> Option AQuick Check:
grep output with here string = matching line [OK]
Quick Trick: grep outputs matching lines from here string input [OK]
Common Mistakes:
MISTAKES- Expecting only the matched word as output
- Thinking no output if string is found
- Confusing error messages with output
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