glenda.party
term% ls -F
term% pwd
$home/manuals/9front/1/look
term% cat index.txt
LOOK(1)                     General Commands Manual                    LOOK(1)



NAME
       look - find lines in a sorted list

SYNOPSIS
       look [ -dfnixtc ] [ string ] [ file ]

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

       The following options are recognized.  Options dfnt affect  comparisons
       as in sort(1).

       -i     Interactive.   There  is  no string argument; instead look takes
              lines from the standard input as strings to be looked up.

       -x     Exact.  Print only lines of the file whose  key  matches  string
              exactly.

       -d     `Directory' order: only letters, digits, tabs and blanks partic‐
              ipate in comparisons.

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

       -n     Numeric comparison with initial string of digits, optional minus
              sign, and optional decimal point.

       -t[c]  Character  c  terminates  the sort key in the file.  By default,
              tab terminates the key.  If c is missing the  entire  line  com‐
              prises the key.

       If no file is specified, /lib/words is assumed, with collating sequence
       df.

FILES
       /lib/words

SOURCE
       /sys/src/cmd/look.c

SEE ALSO
       sort(1), grep(1)

DIAGNOSTICS
       The exit status is ``not found'' if no match is found, and ``no dictio‐
       nary'' if file or the default dictionary cannot be opened.



                                                                       LOOK(1)