+.TH TRA 1 2/24/79
+.UC
+.SH NAME
+tra \- copy out a file as it grows
+.SH SYNOPSIS
+.B tra
+[
+.B \-
+] [
+\-interval
+] [
++limit
+]
+file
+.SH DESCRIPTION
+.I Tra
+will copy out (transcribe) the contents of a file which is growing as it grows.
+It alternately copies out the new material in the file and sleeps
+for
+.I interval
+seconds, the default
+.I interval
+is 15 seconds.
+.I Limit
+can be given to limit the total running time of the
+.I tra,
+the default is effectively infinite.
+.PP
+.I Tra
+normally copies out all the text currently in the file
+before beginning to watch for new text.
+The option
+.B \-
+alone causes only new material to be given.
+.PP
+.I Tra
+is particularly useful for alternately watching the output
+file being written by a long shell script or a long-running
+program and doing real work.
+.SH AUTHOR
+Bill Joy
+.SH BUGS