Unix |
Unix v7 |
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look(1) |
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look − find lines in a sorted list
look [ −df ] string [ file ]
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/dict/words is assumed with collating sequence −df.
/usr/dict/words
sort(1), grep(1)
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look(1) | ![]() |