head(1) head(1)
NAME [Toc] [Back]
head - give first few lines
SYNOPSIS [Toc] [Back]
head [-c|-l] [-n count] [file ...]
Obsolescent:
head [-count] [file ...]
DESCRIPTION [Toc] [Back]
head prints on standard output the first count lines of each of the
specified files, or of the standard input. If count is omitted it
defaults to 10.
If multiple files are specified, head outputs before each file a line
of this form:
==> file <==
Options [Toc] [Back]
-c The quantity of output is measured in bytes.
-count The number of units of output. This option is provided
for backward compatibility (see -n below) and is
mutually exclusive of all other options.
-l The quantity of output is measured in lines; this is
the default.
-n count The number of lines (default) or bytes output. count
is an unsigned decimal integer. If -n (or -count) is
not given, the default quantity is 10. This option
provides the same functionality as the -count option,
but in a more standard way. Use of the -n option is
recommended where portability between systems is
important.
EXTERNAL INFLUENCES [Toc] [Back]
Environment Variables
LC_CTYPE determines the interpretation of text within file as single
and/or multi-byte characters.
LC_MESSAGES determines the language in which messages are displayed.
If LC_CTYPE or LC_MESSAGES is not specified in the environment or is
set to the empty string, the value of LANG is used as a default for
each unspecified or empty variable. If LANG is not specified or is
set to the empty string, a default of "C" (see lang(5)) is used
instead of LANG.
Hewlett-Packard Company - 1 - HP-UX 11i Version 2: August 2003
head(1) head(1)
If any internationalization variable contains an invalid setting, head
behaves as if all internationalization variables are set to "C". See
environ(5).
International Code Set Support [Toc] [Back]
Single- and multi-byte character code sets are supported.
WARNINGS [Toc] [Back]
The length of the input lines is limited to {LINE_MAX} bytes.
SEE ALSO [Toc] [Back]
tail(1), cat(1), more(1), pg(1).
STANDARDS CONFORMANCE [Toc] [Back]
head: SVID3, XPG4, POSIX.2
Hewlett-Packard Company - 2 - HP-UX 11i Version 2: August 2003 [ Back ] |