tail(1)                        DG/UX 5.4R3.00                        tail(1)


NAME
       tail - deliver the last part of a file

SYNOPSIS
       tail [ ± number lbcr ] [ file ]
       tail [ -lbcr ] [ file ]
       tail [ ± number lbcf ] [ file ]
       tail [ -lbcf ] [ file ]

DESCRIPTION
       Tail copies the named file to the standard output beginning at a
       designated place.  If no file is named, the standard input is used.

       Copying begins at distance +number from the beginning, or -number
       from the end of the input (if number is null, the value 10 is
       assumed).  Number is counted in units of lines, blocks, or
       characters, according to the appended option l, b, or c.  When no
       units are specified, counting is by lines.

       With the -f (follow) option, if the input file is not a pipe, the
       program will not terminate after the line of the input file has been
       copied.  Instead, it enters an endless loop, wherein it sleeps for a
       second and then attempts to read and copy further records from the
       input file.  Thus, you can use tail to monitor the growth of a file
       that is being written by some other process.  For example, the
       command:

              tail -f fred

       prints the last ten lines of the file fred, followed by any lines
       that are appended to fred between the time tail is initiated and
       killed.  As another example, the command:

              tail -15cf fred

       will print the last 15 characters of the file fred, followed by any
       lines that are appended to fred between the time tail is initiated
       and killed.

       The r option copies lines from the specified starting point in the
       file in reverse order.  The default for r is to print the entire file
       in reverse order.

       The r and f options are mutually exclusive.

   International Features
       tail can process files containing characters from supplementary code
       sets.

SEE ALSO
       cat(1), dd(1), head(1), more(1), pg(1), tail(1).

NOTES
       Tails relative to the end of the file are saved in a buffer, and thus



Licensed material--property of copyright holder(s)                         1

tail(1)                        DG/UX 5.4R3.00                        tail(1)


       are limited in length.  Various kinds of anomalous behavior may
       happen with character special files.

       The tail command will only tail the last 4096 bytes of a file
       regardless of its length.




















































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