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This command has the following options:
| Option | Interpretation |
|---|---|
-c
| Suppresses normal output; instead print a count of matching lines for each input file |
-h
| Displays the online help for this command |
-i
| Ignores case distinctions in both the PATTERN and the input files |
-n
| Prefixes each line of output with the line number within its input file |
-v
| Inverts the sense of matching, to select non-matching lines |
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