Section: User Commands (1)Index
Return to Main Contents
- display lines beginning with a given string
utility displays any lines in
as a prefix.
is not specified, the file
is used, only alphanumeric characters are compared and the case of
alphabetic characters is ignored.
The following options are available:
Use a binary search on the given word list. If you are ignoring case with
or ignoring non-alphanumeric characters with
the file must be sorted in the same way. Please note that these options are the
default if no filename is given. See
for more information on sorting files.
Dictionary character set and order, i.e., only alphanumeric characters
Ignore the case of alphabetic characters.
Specify a string termination character, i.e., only the characters
up to and including the first occurrence of
LANG , LC_ALL
environment variables affect the execution of the
Their effect is described in
utility exits 0 if one or more lines were found and displayed,
1 if no lines were found, and >1 if an error occurred.
The original manual page stated that tabs and blank characters participated
in comparisons when the
option was specified.
This was incorrect and the current man page matches the historic
uses a linear search by default instead of a binary search, which is what most
other implementations use by default.
utility appeared in
Lines are not compared according to the current locale's collating
Input files must be sorted with
- EXIT STATUS
- SEE ALSO