lines beginning with a given string
utility displays any lines in
as a prefix. As
performs a binary search, the lines in
must be sorted.
is not specified, the file
is used. Only alphanumeric
characters are compared and the case of alphabetic characters is ignored.
The options are as follows:
- Dictionary character set and order, i.e., only alphanumeric
characters are compared.
- Ignore the case of alphabetic characters.
- Specify a string termination character, i.e., only the
characters in string up to and including
the first occurrence of termchar are
- the dictionary
utility exits 0 if one or more lines were
found and displayed, 1 if no lines were found, or >1 if an error occurred.
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 historic
command appeared in
Version 7 AT&T UNIX