Man Look en anglais
LOOK(1)                   BSD General Commands Manual                  LOOK(1)

 

NAME


     look - display lines beginning with a given string

 

SYNOPSIS


     look [-df] [-t termchar] string [file ...]

 

DESCRIPTION






     The look utility displays any lines in file which contain string as a
     prefix.

     If file is not specified, the file /usr/share/dict/words is used, only
     alphanumeric characters are compared and the case of alphabetic charac-
     ters is ignored.

     Options:

     -b      Use a binary search on the given word list. If you are ignoring
             case with -f or ignoring non-alphanumeric characters with -d, the
             file must be sorted in the same way. See sort(1) for more infor-
             mation on sorting files.

     -d      Dictionary character set and order, i.e. only alphanumeric char-
             acters are compared.

     -f      Ignore the case of alphabetic characters.

     -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.

 

FILES


     /usr/share/dict/words  the dictionary

 

SEE ALSO


     grep(1), sort(1)

 

COMPATIBILITY


     The original manual page stated that tabs and blank characters partici-
     pated in comparisons when the -d option was specified.  This was incor-
     rect and the current man page matches the historic implementation.

     look uses a linear search by default instead of a binary search, which is
     what most other implementations use by default.

 

HISTORY


     A look utility appeared in Version 7 AT&T UNIX.

BSD                              May 13, 2004                              BSD