Linux CLI - Text Processing
Which of these is the correct syntax to print the first field of each line using
awk?Which of these is the correct syntax to print the first field of each line using awk?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Identify correct awk print syntax
The print statement must be inside braces {} and use $1 to refer to the first field.Step 2: Check each option
awk '{print $1}' file.txt uses correct braces and $1. awk 'print $1' file.txt misses braces. awk '{print 1}' file.txt prints number 1 literally. awk '{print $}' file.txt uses invalid $.Final Answer:
awk '{print $1}' file.txt -> Option DQuick Check:
Print first field = awk '{print $1}' [OK]
Quick Trick: Always use braces {} around actions in awk [OK]
Common Mistakes:
- Omitting braces around print
- Using $ without field number
- Printing literal numbers instead of fields
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