User Commands                                             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.







SunOS 5.10           Last change: 1 Feb 1995                    1






User Commands                                             head(1)



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)








SunOS 5.10           Last change: 1 Feb 1995                    2