ContextLineControl-A NUM,--after-context=NUM
Print NUM lines of trailing context after matching lines.Places a line containing a gup separator (described under --group-separator)
between contiguous groups of matches.With the -o or --only-matching
option, this has no effect and a warning is given.-B NUM,--before-context=NUM
Print NUM lines of leading context before matching lines.Places a line containing a group separator (described under --group-separator)
between contiguous groups of matches.With the -o or --only-matching
option, this has no effect and a warning is given.-C NUM,-NUM,--context=NUM
Print NUM lines of output context.Places a line containing a group separator
(described under --group-separator) between contiguous groups of matches.With the -o or --only-matching option, this has no effect and a warning
is given.--group-separator=SEP
Use SEP as a group separator.By default SEP is double hyphen (--).--no-group-separator
Use empty string as a group separator.
Jawaban:
Kamu ingin:
Dari
man grep
:sumber
Beberapa
awk
versi.Saat pola ditemukan, atur
c=5
Jika
c
benar, cetak dan kurangi jumlahc
sumber
Berikut adalah solusi sed:
sumber