head(1) [hpux man page]
head(1) General Commands Manual head(1) NAME
head - give first few lines SYNOPSIS
count] [file ...] Obsolescent: [file ...] DESCRIPTION
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, outputs before each file a line of this form: file Options The quantity of output is measured in bytes. The number of units of output. This option is provided for backward compatibility (see below) and is mutually exclusive of all other options. The quantity of output is measured in lines; this is the default. The number of lines (default) or bytes output. count is an unsigned decimal integer. If (or is not given, the default quantity is 10. This option provides the same func- tionality as the option, but in a more standard way. Use of the option is recommended where portability between systems is important. EXTERNAL INFLUENCES
Environment Variables determines the interpretation of text within file as single and/or multi-byte characters. determines the language in which messages are displayed. If or is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty variable. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See environ(5). International Code Set Support Single- and multi-byte character code sets are supported. WARNINGS
The length of the input lines is limited to bytes. SEE ALSO
tail(1), cat(1), more(1), pg(1). STANDARDS CONFORMANCE
head(1)
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head(1) General Commands Manual head(1) NAME
head - Displays the beginning of files SYNOPSIS
Current Syntax head [-c bytes] [-n lines] [file...] Obsolescent Syntax head [-lines] [file...] STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: head: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
The default count is 10. [Tru64 UNIX] Specifies the number of bytes to display. If the last byte written is not a newline character, a newline character is appended to the output. Specifies the number of lines to display Works exactly as -n lines. Obsolescent. OPERANDS
Path name of the input file. If you do not specify a file, head reads standard input. DESCRIPTION
The head command copies the standard input to standard output, ending output of each file at the specified point. NOTES
The obsolescent form is subject to withdrawal at any time. EXIT STATUS
The following exit values are returned: Successful completion. An error occurred. EXAMPLES
To display the first 5 lines of a file called test, enter: head -n 5 test To display the first ten lines of all files (except those with a name beginning with a period), enter: head * ENVIRONMENT VARIABLES
The following environment variables affect the execution of head: Provides a default value for the internationalization variables that are unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari- ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value, overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multibyte characters in arguments and input files). Determines the locale for the format and contents of diagnostic messages written to standard error. Determines the location of message catalogues for the processing of LC_MESSAGES. SEE ALSO
Commands: cat(1), more(1), pg(1), sed(1), tail(1) Standards: standards(5) head(1)