How can you use xargs to run a command on each line of a file list.txt that contains multiple words per line, treating each line as a single argument?

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Linux CLI - Pipes and Redirection

How can you use xargs to run a command on each line of a file list.txt that contains multiple words per line, treating each line as a single argument?

Axargs -n 1 < list.txt command

Bxargs -L 1 < list.txt command

Cxargs -d '\n' -n 1 < list.txt command

Dxargs -I {} command {} < list.txt

Step-by-Step Solution

Solution:

Step 1: Understand argument grouping by line
-L 1 tells xargs to read one line per command, treating the entire line as a single argument, preserving spaces.
Step 2: Compare with other options
-n 1 splits by whitespace; -d '\n' -n 1 splits by newline but still splits words; -I {} replaces placeholders but splits input.
Final Answer:
xargs -L 1 < list.txt command -> Option B
Quick Check:
Run command per line as single arg = -L 1 [OK]

Quick Trick: -L 1 runs command once per input line as single arg [OK]

Common Mistakes:

Using -n 1 splits words, not lines
Confusing -I or -d with line grouping as single arg

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How can you use xargs to run a command on each line of a file list.txt that contains multiple words per line, treating each line as a single argument?

Step 1: Understand argument grouping by line

Step 2: Compare with other options

Final Answer:

Quick Check:

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