Name
look
Synopsis
look [options]string[file]
Looks through a sorted file and prints all lines that begin with
string. Words may be up to 256 characters
long. This program is potentially faster than
fgrep because it relies on the
file being already sorted, and can thus do
a binary search through the file, instead of reading it sequentially
from beginning to end.
With no file, look
searches /usr/share/dict/words (the spelling
dictionary) with options -df.
Options
-
-d Use dictionary order. Only letters, digits, space, and tab are used in comparisons.
-
-f Fold case; ignore case distinctions in comparisons.
-
-tchar Use
charas the termination character, i.e., ignore all characters to the right ofchar.
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