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clarified GNU grep required for -m

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edited Apr 22, 2022 at 23:07

Although it's an unconventional application of grep, you can do it in GNU grep using

grep -m1 "" file.txt

It works because the empty expression matches anything, while -m1 causes grep to exit after the first match

-m NUM, --max-count=NUM
       Stop reading a file after NUM matching lines.

Although it's an unconventional application of grep, you can do it using

grep -m1 "" file.txt

It works because the empty expression matches anything, while -m1 causes grep to exit after the first match

-m NUM, --max-count=NUM
       Stop reading a file after NUM matching lines.

Although it's an unconventional application of grep, you can do it in GNU grep using

grep -m1 "" file.txt

It works because the empty expression matches anything, while -m1 causes grep to exit after the first match

-m NUM, --max-count=NUM
       Stop reading a file after NUM matching lines.

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answered Jul 7, 2016 at 19:10

Although it's an unconventional application of grep, you can do it using

grep -m1 "" file.txt

It works because the empty expression matches anything, while -m1 causes grep to exit after the first match

-m NUM, --max-count=NUM
       Stop reading a file after NUM matching lines.