Support -A/-B options in grep

[turbanoff]

grep has options -A/-B which useful to get context of every matched line.

   -A NUM, --after-context=NUM
          Print NUM lines of trailing context after 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.

   -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.

It would be nice to have support of this options in unix4j

[terzerm]

You are right those options would be a good addition. Just not sure I'll have time to work on this in the next few weeks.