head(1)

NAME

     head - display first few lines of files

SYNOPSIS

     head [-number | -n number]  [filename...]

DESCRIPTION

     The head utility copies the first number of  lines  of  each
     filename  to  the  standard output. If no filename is given,
     head copies lines from the standard input. The default value
     of number is 10 lines.

     When more than one file is specified, the start of each file
     will look like:

     ==> filename <==

     Thus, a common way to display a set of short files,  identi-
     fying each one, is:

     example% head -9999 filename1 filename2 ...

OPTIONS

     The following options are supported:

     -n number
           The first number lines of  each  input  file  will  be
           copied  to standard output. The number option-argument
           must be a positive decimal integer.

     -number
           The number argument is a positive decimal integer with
           the same effect as the -n number option.

     If no options are specified, head will act as  if  -n  10had
     been specified.

OPERANDS

     The following operand is supported:

     file  A path name of an input file. If no file operands  are
           specified, the standard input will be used.

USAGE

     See largefile(5) for the description of the behavior of head
     when encountering files greater than or equal to 2 Gbyte ( 2
    **31 bytes).

EXAMPLES

     Example 1: Writing the first ten lines of all files

     To write the first ten lines of all files (except those with
     a leading period) in the directory:

     example% head *

ENVIRONMENT VARIABLES

     See environ(5) for descriptions of the following environment
     variables  that  affect the execution of head: LANG, LC_ALL,
     LC_CTYPE, LC_MESSAGES, and NLSPATH.

EXIT STATUS

     The following exit values are returned:

     0     Successful completion.

     >0    An error occurred.

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|
    | CSI                         | enabled                     |
    |_____________________________|_____________________________|
    | Interface Stability         | Standard                    |
    |_____________________________|_____________________________|

SEE ALSO

     cat(1), more(1), pg(1), tail(1), attributes(5),  environ(5),
     largefile(5), standards(5)