lttng-version(1)

1LTTNG-VERSION(1)                 LTTng Manual                 LTTNG-VERSION(1)
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NAME

6       lttng-version - Get the version of LTTng-tools
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SYNOPSIS

9       lttng [GENERAL OPTIONS] version
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DESCRIPTION

12       The lttng version command shows the version of LTTng-tools, the LTTng
13       project which provides the lttng(1) command and other tracing control
14       programs and libraries.
15
16       The output of the version command shows:
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18       •   The major, minor, and patch version numbers.
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20       •   The Git commit information, if available.
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22       •   The release name and its description.
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24       •   The URL of the LTTng project website.
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26       •   The license information.
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OPTIONS

29       See lttng(1) for GENERAL OPTIONS.
30
31   Program information
32       -h, --help
33           Show help.
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35           This option attempts to launch /usr/bin/man to view this manual
36           page. Override the manual pager path with the LTTNG_MAN_BIN_PATH
37           environment variable.
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39       --list-options
40           List available command options and quit.
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EXIT STATUS

43       0
44           Success
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46       1
47           Command error
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49       2
50           Undefined command
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52       3
53           Fatal error
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55       4
56           Command warning (something went wrong during the command)
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ENVIRONMENT

59       LTTNG_ABORT_ON_ERROR
60           Set to 1 to abort the process after the first error is encountered.
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62       LTTNG_HOME
63           Path to the LTTng home directory.
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65           Defaults to $HOME.
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67           Useful when the Unix user running the commands has a non-writable
68           home directory.
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70       LTTNG_MAN_BIN_PATH
71           Absolute path to the manual pager to use to read the LTTng
72           command-line help (with lttng-help(1) or with the --help option)
73           instead of /usr/bin/man.
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75       LTTNG_SESSION_CONFIG_XSD_PATH
76           Path to the directory containing the session.xsd recording session
77           configuration XML schema.
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79       LTTNG_SESSIOND_PATH
80           Absolute path to the LTTng session daemon binary (see lttng-
81           sessiond(8)) to spawn from the lttng-create(1) command.
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83           The --sessiond-path general option overrides this environment
84           variable.
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FILES

87       $LTTNG_HOME/.lttngrc
88           Unix user’s LTTng runtime configuration.
89
90           This is where LTTng stores the name of the Unix user’s current
91           recording session between executions of lttng(1).  lttng-create(1)
92           and lttng-set-session(1) set the current recording session.
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94       $LTTNG_HOME/lttng-traces
95           Default output directory of LTTng traces in local and snapshot
96           modes.
97
98           Override this path with the --output option of the lttng-create(1)
99           command.
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101       $LTTNG_HOME/.lttng
102           Unix user’s LTTng runtime and configuration directory.
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104       $LTTNG_HOME/.lttng/sessions
105           Default directory containing the Unix user’s saved recording
106           session configurations (see lttng-save(1) and lttng-load(1)).
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108       /usr/local/etc/lttng/sessions
109           Directory containing the system-wide saved recording session
110           configurations (see lttng-save(1) and lttng-load(1)).
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112       Note
113           $LTTNG_HOME defaults to the value of the HOME environment variable.
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RESOURCES

116       •   LTTng project website <https://lttng.org>
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118       •   LTTng documentation <https://lttng.org/docs>
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120       •   LTTng bug tracker <https://bugs.lttng.org>
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122       •   Git repositories <https://git.lttng.org>
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124       •   GitHub organization <https://github.com/lttng>
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126       •   Continuous integration <https://ci.lttng.org/>
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128       •   Mailing list <https://lists.lttng.org/> for support and
129           development: lttng-dev@lists.lttng.org
130
131       •   IRC channel <irc://irc.oftc.net/lttng>: #lttng on irc.oftc.net
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COPYRIGHT

134       This program is part of the LTTng-tools project.
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136       LTTng-tools is distributed under the GNU General Public License
137       version 2 <http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html>.
138       See the LICENSE <https://github.com/lttng/lttng-
139       tools/blob/master/LICENSE> file for details.
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THANKS

142       Special thanks to Michel Dagenais and the DORSAL laboratory
143       <http://www.dorsal.polymtl.ca/> at École Polytechnique de Montréal for
144       the LTTng journey.
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146       Also thanks to the Ericsson teams working on tracing which helped us
147       greatly with detailed bug reports and unusual test cases.
148