|Linux & Unix Commands - Search Man Pages
LOOK(1) BSD General Commands Manual LOOK(1)
look -- display lines beginning with a given string
look [-dfa] [-t termchar] string [file]
The look utility displays any lines in file which contain string as a prefix. As look per-
forms a binary search, the lines in file must be sorted (where sort(1) got the same options
-d and/or -f that look is invoked with).
If file is not specified, the file /usr/share/dict/words is used, only alphanumeric charac-
ters are compared and the case of alphabetic characters is ignored.
-d Dictionary character set and order, i.e. only alphanumeric characters are compared.
-f Ignore the case of alphabetic characters.
-a Use the alternate dictionary /usr/share/dict/web2
-t Specify a string termination character, i.e. only the characters in string up to and
including the first occurrence of termchar are compared.
The look utility exits 0 if one or more lines were found and displayed, 1 if no lines were
found, and >1 if an error occurred.
/usr/share/dict/words the dictionary
/usr/share/dict/web2 the alternate dictionary
The original manual page stated that tabs and blank characters participated in comparisons
when the -d option was specified. This was incorrect and the current man page matches the
Look appeared in Version 7 AT&T Unix.
BSD June 14, 1993 BSD
All times are GMT -4. The time now is 07:55 AM.