getlines

Syntax: getlines [-h] [ -af | -bf | -bt | -jaf | -jbf | -bt ] string1 string2
Copies selected lines of standard input to standard output.
-h   print this help.
-af  print all lines located *after* a line containing string1
-bf  print all lines located *before* a line containing string1
-bt  print all lines located between a line containing string1 and a line containing string2
     (If there are multiple blocks of lines braketed by [begin string]
      and [end string] they are all copied.)
The prefix j means "just", indicating that the line(s) containing the matching string(s) is (are) ommited.
Don't forget to quote your strings if they contain spaces.