NAME

look − find lines in a sorted list

SYNOPSIS

look [ −df ] string [ file ]

DESCRIPTION

Look consults a sorted file and prints all lines that begin with string. It uses binary search.

The options d and f affect comparisons as in sort(1):

d ‘Dictionary’ order: only letters, digits, tabs and blanks participate in comparisons. 

f Fold.  Upper case letters compare equal to lower case. 

If no file is specified, /usr/share/dict/words is assumed with collating sequence −df. 

FILES

/usr/share/dict/words

SEE ALSO

sort(1), grep(1)

7th Edition  —  Revision 1.3 of 20/06/90