shithub: watch

ref: 5d4e55ea225f736f41d4e351033ba269e117c149
dir: watch/watch.man

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.TH WATCH 1
.SH NAME
watch \- run a command on file change
.SH SYNOPSIS
.B watch 
[
.B -t
sec
] [[
.B -e
pattern
] ... ] [
.B command
]
.SH DESCRIPTION
.PP
Run
.IR command
.RB ( mk
by default) when a change to files
in the current directory is detected.
.PP
The options are as follows:
.TF "-e pattern"
.TP
.BI -e pattern
Watch files matching a
.IR pattern ;
it may be given multiple times and
defaults to
.BR \e.[chsy]$ 
.TP
.BI -t sec
Sets the polling period;
one second by default.
.TP
.B -G
Prevents regrouping to the parent
process' note group. The default
to regroup was chosen to make it
easy to kill
.I watch
in common use by  interrupting the
parent shell.
.SH EXAMPLES
.EX
watch -e '\e.man$' 'mk install; window man -P prog' &
.EE
.SH SEE ALSO
.SH SOURCE
.B git://code.kvik.link/watch
.SH BUGS
.I Watch
will not react on file removal.
.PP
.I Qid.vers
is watched for changes, which is
not maintained by every file server.
.PP
The polling period is actually
.I sec
plus the time it takes to run
.IR command .