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| author | Kent R. Spillner <kspillner@acm.org> | 2012-01-26 08:42:37 -0600 |
|---|---|---|
| committer | Kent R. Spillner <kspillner@acm.org> | 2012-01-26 08:42:37 -0600 |
| commit | 81f64657ba183ee983ea98c7f97904296b2ce5aa (patch) | |
| tree | 7e8b88ca5fda3c47618ec0c73b6c270a792ea772 /watch.1 | |
| parent | 8955ec26fecf367eafcbcddaf3276437abc5e4f3 (diff) | |
| download | procps-ng-81f64657ba183ee983ea98c7f97904296b2ce5aa.tar.gz | |
watch: exit when command output changes.
Add new flags to watch (-g/--chgexit) so that it exits when the
output changes. This is useful in builds and shell scripts, for
example when deploying webapps to block the remainder of the
deployment steps until after the webapp starts.
e.g. watch --chgexit curl http://foo/bar
Diffstat (limited to 'watch.1')
| -rw-r--r-- | watch.1 | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -11,6 +11,7 @@ runs repeatedly, displaying its output and errors (the first screenfull). This allows you to watch the program output change over time. By default, the program is run every 2 seconds. +By default, .B watch will run until interrupted. .SH OPTIONS @@ -44,6 +45,11 @@ Beep if command has a non-zero exit. \fB\-e\fR, \fB\-\-errexit\fR Freeze updates on command error, and exit after a key press. .TP +\fB\-g\fR, \fB\-\-chgexit\fR +Exit when the output of +.I command +changes. +.TP \fB\-c\fR, \fB\-\-color\fR Interpret ANSI color sequences. .TP |