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diff --git a/scripts/annotate-output.1 b/scripts/annotate-output.1 new file mode 100644 index 0000000..2352221 --- /dev/null +++ b/scripts/annotate-output.1 @@ -0,0 +1,60 @@ +.TH ANNOTATE-OUTPUT 1 "Debian Utilities" "DEBIAN" \" -*- nroff -*- +.SH NAME +annotate-output \- annotate program output with time and stream +.SH SYNOPSIS +\fBannotate\-output\fR [\fIoptions\fR] \fIprogram\fR [\fIargs\fR ...] +.SH DESCRIPTION +\fBannotate\-output\fR will execute the specified program, while +prepending every line with the current time and O for stdout and E for +stderr. + +.SH OPTIONS +.TP +\fB+FORMAT\fR +Controls the timestamp format, as per \fBdate\fR(1). Defaults to +"%H:%M:%S". +.TP +\fB\-h\fR, \fB\-\-help\fR +Display a help message and exit successfully. + +.SH EXAMPLE + +.nf +$ annotate-output make +21:41:21 I: Started make +21:41:21 O: gcc \-Wall program.c +21:43:18 E: program.c: Couldn't compile, and took me ages to find out +21:43:19 E: collect2: ld returned 1 exit status +21:43:19 E: make: *** [all] Error 1 +21:43:19 I: Finished with exitcode 2 +.fi + +.SH BUGS +Since stdout and stderr are processed in parallel, it can happen that +some lines received on stdout will show up before later-printed stderr +lines (and vice-versa). + +This is unfortunately very hard to fix with the current annotation +strategy. A fix would involve switching to PTRACE'ing the process. +Giving nice a (much) higher priority over the executed program could +however cause this behaviour to show up less frequently. + +The program does not work as well when the output is not linewise. In +particular, when an interactive program asks for input, the question +might not be shown until after you have answered it. This will give +the impression that the annotated program has hung, while it has not. + +.SH "SEE ALSO" +\fBdate\fR(1) + +.SH SUPPORT +This program is community-supported (meaning: you'll need to fix it +yourself). Patches are however appreciated, as is any feedback +(positive or negative). + +.SH AUTHOR +This manual page was written by Jeroen van Wolffelaar <jeroen@wolffelaar.nl> +and can be redistributed under the terms of the GPL version 2. +The \fBannotate-output\fR script itself was re-written by Johannes Schauer +Marin Rodrigues <josch@debian.org> and can be redistributed under the terms +of the Expat license. |