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| -rw-r--r-- | README.md | 12 |
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@@ -3,6 +3,8 @@ `pw` stands for Pipe Watch. Pipe-Watch is a new monitoring utility for Unix-like systems, developed starting in April 2022. +Scroll down for a demo video. + `pw` can monitor anything that produces output. `tail -f /var/logfile`, `tcpdump`, you name it. In particular, it's suitable when the output is spewing at a fast rate. @@ -12,6 +14,16 @@ does that in the background. It continuously pumps lines of input through a small FIFO buffer. This buffer is sampled, and displayed. When the sampling occurs is controlled in various ways. +`pw` is a little over 1200 lines of code, all in one source file, compiling to +a tiny executable. It depends on no libraries other than the POSIX standard +functions; all terminal control is via ANSI sequences. It does like to have a +`struct winsize` and an `ioctl` to fill it in. Since it only retains the last +portion of the real-time input, it doesn't need a lot of memory. There is +a seven line GNU Makefile to build it. If that doesn't work for you, try it +some other way. It tested it on on Solaris 10, and older Mac OS, Cygwin and a +few GNU/Linuxes. It built on OpenBSD, but didn't run properly; I didn't +investigate into it. Patches welcome. + ## Documentation The [`pw` man page](../tree/pw.1) has all the usage details. |