root@monkey:/home/code/bookproject/books# pv -h
Usage: pv [OPTION] [FILE]...
Concatenate FILE(s), or standard input, to standard output,
with monitoring.
-p, --progress show progress bar
-t, --timer show elapsed time
-e, --eta show estimated time of arrival (completion)
-r, --rate show data transfer rate counter
-b, --bytes show number of bytes transferred
-f, --force output even if standard error is not a terminal
-n, --numeric output percentages, not visual information
-q, --quiet do not output any transfer information at all
-c, --cursor use cursor positioning escape sequences
-L, --rate-limit RATE limit transfer to RATE bytes per second
-W, --wait display nothing until first byte transferred
-s, --size SIZE set estimated data size to SIZE bytes
-i, --interval SEC update every SEC seconds
-w, --width WIDTH assume terminal is WIDTH characters wide
-H, --height HEIGHT assume terminal is HEIGHT rows high
-N, --name NAME prefix visual information with NAME
-h, --help show this help and exit
-l, --license show the license this program is distributed under
-V, --version show version information and exit
Please report any bugs to Andrew Wood <andrew.wood@ivarch.com>.