During a code-quality review you need a quick way to see whether any line in the file app/views.py exceeds your 120-character style limit. Which single option should you pass to wc so that the command prints only the length of the longest line in the file (followed by the file name)?
-m
-l
-L
-w
The wc option that reports the length of the longest line is -L (or its long form --max-line-length). It outputs a single integer representing the maximum display width of any line in the file, making it easy to compare that value against a style limit.
-m prints the total number of characters in the file, not the length of the longest line.
-l prints the number of newline characters (effectively the line count).
-w prints the number of words. None of these options provide the required longest-line measurement.
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