LOOK(1)
NAME
look − find lines in a sorted list
USAGE
look [ −df ] string [ file ]
DESCRIPTION
Look consults a sorted file and prints all lines that begin with string. It uses binary search.
The two valid options for look affect comparisons as in sort (1). If no file is specified, /usr/dict/words is assumed with the collating sequence −df.
OPTIONS
−d Use dictionary order. Compare only letters, digits, tabs, and blanks.
−f Compare uppercase letters equal to lowercase letters.
FILES
/usr/dict/words