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32 .\" @(#)look.1 8.1 (Berkeley) 6/14/93
40 .Nd display lines beginning with a given string
50 utility displays any lines in
57 performs a binary search, the lines in
63 is not specified, the file
64 .Pa /usr/share/dict/words
65 is used, only alphanumeric characters are compared and the case of
66 alphabetic characters is ignored.
68 The following options are available:
69 .Bl -tag -width indent
71 Dictionary character set and order, i.e., only alphanumeric characters
74 Ignore the case of alphabetic characters.
76 Specify a string termination character, i.e., only the characters
79 up to and including the first occurrence of
88 environment variables affect the execution of the
91 Their effect is described in
94 .Bl -tag -width /usr/share/dict/words -compact
95 .It Pa /usr/share/dict/words
101 utility exits 0 if one or more lines were found and displayed,
102 1 if no lines were found, and >1 if an error occurred.
104 The original manual page stated that tabs and blank characters participated
105 in comparisons when the
107 option was specified.
108 This was incorrect and the current man page matches the historic
119 Lines are not compared according to the current locale's collating
121 Input files must be sorted with