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回复 4# 〓BigBigWolf〓
-m NUM, --max-count=NUM
Stop reading a file after NUM matching lines. If the input is standard input from a
regular file, and NUM matching lines are output, grep ensures that the standard input
is positioned to just after the last matching line before exiting, regardless of the
presence of trailing context lines. This enables a calling process to resume a
search. When grep stops after NUM matching lines, it outputs any trailing context
lines. When the -c or --count option is also used, grep does not output a count
greater than NUM. When the -v or --invert-match option is also used, grep stops after
outputting NUM non-matching lines.
'.' to match any single character |
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