| 1 | lttng-view(1) |
| 2 | ============= |
| 3 | :revdate: 29 April 2021 |
| 4 | |
| 5 | |
| 6 | NAME |
| 7 | ---- |
| 8 | lttng-view - Launch an LTTng trace reader |
| 9 | |
| 10 | |
| 11 | SYNOPSIS |
| 12 | -------- |
| 13 | [verse] |
| 14 | *lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *view* [option:--viewer='READER'] |
| 15 | ['SESSION' | option:--trace-path='DIR'] |
| 16 | |
| 17 | |
| 18 | DESCRIPTION |
| 19 | ----------- |
| 20 | The `lttng view` command launches an external trace reader to read the |
| 21 | current traces of: |
| 22 | |
| 23 | With the option:--session='SESSION' option:: |
| 24 | The tracing session named 'SESSION'. |
| 25 | |
| 26 | With the option:--trace-path='DIR' option:: |
| 27 | The local file system directory 'DIR'. |
| 28 | |
| 29 | Otherwise:: |
| 30 | The current tracing session (see man:concepts(1) to learn more about |
| 31 | the current tracing session). |
| 32 | |
| 33 | With the option:--session option or without the option:--trace-path |
| 34 | option, the mode of the selected tracing session may :not: be network |
| 35 | streaming or live. |
| 36 | |
| 37 | By default, the `view` command attempts to launch man:babeltrace2(1) or, |
| 38 | if it's not available, man:babeltrace(1). Override which trace reader to |
| 39 | launch with the option:--viewer option. |
| 40 | |
| 41 | |
| 42 | include::common-lttng-cmd-options-head.txt[] |
| 43 | |
| 44 | |
| 45 | option:-t 'DIR', option:--trace-path='DIR':: |
| 46 | Pass 'DIR' as the last argument of the trace reader command instead |
| 47 | of the output directory of the selected tracing session. |
| 48 | |
| 49 | option:-e 'READER', option:--viewer='READER':: |
| 50 | Use the trace reader 'READER' to read the traces. |
| 51 | + |
| 52 | 'READER' is the absolute path to the reader command to use, and it can |
| 53 | contain command arguments as well. The `view` command passes the trace |
| 54 | directory path to read to the 'READER' command as its last argument. |
| 55 | + |
| 56 | Without this option, the `view` command uses man:babeltrace2(1) if it's |
| 57 | available. Otherwise, it tries to use man:babeltrace(1). |
| 58 | |
| 59 | |
| 60 | include::common-lttng-cmd-help-options.txt[] |
| 61 | |
| 62 | |
| 63 | include::common-lttng-cmd-after-options.txt[] |
| 64 | |
| 65 | |
| 66 | include::common-footer.txt[] |
| 67 | |
| 68 | |
| 69 | SEE ALSO |
| 70 | -------- |
| 71 | man:babeltrace2(1), |
| 72 | man:lttng(1) |