Provided by: sudo_1.8.31-1ubuntu1.5_amd64 bug


     sudoreplay — replay sudo session logs


     sudoreplay [-hnRS] [-d dir] [-f filter] [-m num] [-s num] ID

     sudoreplay [-h] [-d dir] -l [search expression]


     sudoreplay plays back or lists the output logs created by sudo.  When replaying, sudoreplay
     can play the session back in real-time, or the playback speed may be adjusted (faster or
     slower) based on the command line options.

     The ID should either be a six character sequence of digits and upper case letters, e.g.,
     0100A5, a pattern matching the iolog_file option in the sudoers file, or a path name.  Path
     names may be relative to the iolog_dir option in the sudoers file (unless overridden by the
     -d option) or fully qualified, beginning with a ‘/’ character.  When a command is run via
     sudo with log_output enabled in the sudoers file, a TSID=ID string is logged via syslog or
     to the sudo log file.  The ID may also be determined using sudoreplay's list mode.

     In list mode, sudoreplay can be used to find the ID of a session based on a number of
     criteria such as the user, tty or command run.

     In replay mode, if the standard input and output are connected to a terminal and the -n
     option is not specified, sudoreplay will operate interactively.  In interactive mode,
     sudoreplay will attempt to adjust the terminal size to match that of the session and write
     directly to the terminal (not all terminals support this).  Additionally, it will poll the
     keyboard and act on the following keys:

     ‘\n’ or ‘\r’  Skip to the next replay event; useful for long pauses.

     ‘ ’ (space)   Pause output; press any key to resume.

     ‘<’           Reduce the playback speed by one half.

     ‘>’           Double the playback speed.

     The session can be interrupted via control-C.  When the session has finished, the terminal
     is restored to its original size if it was changed during playback.

     The options are as follows:

     -d dir, --directory=dir
                 Store session logs in dir instead of the default, /var/log/sudo-io.

     -f filter, --filter=filter
                 Select which I/O type(s) to display.  By default, sudoreplay will display the
                 command's standard output, standard error and tty output.  The filter argument
                 is a comma-separated list, consisting of one or more of following: stdin,
                 stdout, stderr, ttyin, and ttyout.

     -h, --help  Display a short help message to the standard output and exit.

     -l, --list [search expression]
                 Enable “list mode”.  In this mode, sudoreplay will list available sessions in a
                 format similar to the sudo log file format, sorted by file name (or sequence
                 number).  Any control characters present in the log data are formatted in octal
                 with a leading ‘#’ character.  For example, a horizontal tab is displayed as
                 ‘#011’ and an embedded carriage return is displayed as ‘#015’.  Space characters
                 in the command name and arguments are also formatted in octal.

                 If a search expression is specified, it will be used to restrict the IDs that
                 are displayed.  An expression is composed of the following predicates:

                 command pattern
                         Evaluates to true if the command run matches the POSIX extended regular
                         expression pattern.

                 cwd directory
                         Evaluates to true if the command was run with the specified current
                         working directory.

                 fromdate date
                         Evaluates to true if the command was run on or after date.  See Date and
                         time format for a description of supported date and time formats.

                 group runas_group
                         Evaluates to true if the command was run with the specified runas_group.
                         Note that unless a runas_group was explicitly specified when sudo was
                         run this field will be empty in the log.

                 runas runas_user
                         Evaluates to true if the command was run as the specified runas_user.
                         Note that sudo runs commands as user root by default.

                 todate date
                         Evaluates to true if the command was run on or prior to date.  See Date
                         and time format for a description of supported date and time formats.

                 tty tty name
                         Evaluates to true if the command was run on the specified terminal
                         device.  The tty name should be specified without the /dev/ prefix,
                         e.g., tty01 instead of /dev/tty01.

                 user user name
                         Evaluates to true if the ID matches a command run by user name.

                 Predicates may be abbreviated to the shortest unique string.

                 Predicates may be combined using and, or and ! operators as well as ‘(’ and ‘)’
                 grouping (note that parentheses must generally be escaped from the shell).  The
                 and operator is optional, adjacent predicates have an implied and unless
                 separated by an or.

     -m, --max-wait max_wait
                 Specify an upper bound on how long to wait between key presses or output data.
                 By default, sudoreplay will accurately reproduce the delays between key presses
                 or program output.  However, this can be tedious when the session includes long
                 pauses.  When the -m option is specified, sudoreplay will limit these pauses to
                 at most max_wait seconds.  The value may be specified as a floating point
                 number, e.g., 2.5.  A max_wait of zero or less will eliminate the pauses

     -n, --non-interactive
                 Do not prompt for user input or attempt to re-size the terminal.  The session is
                 written to the standard output, not directly to the user's terminal.

     -R, --no-resize
                 Do not attempt to re-size the terminal to match the terminal size of the

     -S, --suspend-wait
                 Wait while the command was suspended.  By default, sudoreplay will ignore the
                 time interval between when the command was suspended and when it was resumed.
                 If the -S option is specified, sudoreplay will wait instead.

     -s, --speed speed_factor
                 This option causes sudoreplay to adjust the number of seconds it will wait
                 between key presses or program output.  This can be used to slow down or speed
                 up the display.  For example, a speed_factor of 2 would make the output twice as
                 fast whereas a speed_factor of .5 would make the output twice as slow.

     -V, --version
                 Print the sudoreplay versions version number and exit.

   Date and time format
     The time and date may be specified multiple ways, common formats include:

     HH:MM:SS am MM/DD/CCYY timezone
             24 hour time may be used in place of am/pm.

     HH:MM:SS am Month, Day Year timezone
             24 hour time may be used in place of am/pm, and month and day names may be
             abbreviated.  Note that month and day of the week names must be specified in

             ISO time format

     DD Month CCYY HH:MM:SS
             The month name may be abbreviated.

     Either time or date may be omitted, the am/pm and timezone are optional.  If no date is
     specified, the current day is assumed; if no time is specified, the first second of the
     specified date is used.  The less significant parts of both time and date may also be
     omitted, in which case zero is assumed.

     The following are all valid time and date specifications:

     now     The current time and date.

             Exactly one day from now.

             24 hours ago.

     2 hours ago
             2 hours ago.

     next Friday
             The first second of the Friday in the next (upcoming) week.  Not to be confused with
             “this Friday” which would match the Friday of the current week.

     last week
             The current time but 7 days ago.  This is equivalent to “a week ago”.

     a fortnight ago
             The current time but 14 days ago.

     10:01 am 9/17/2009
             10:01 am, September 17, 2009.

     10:01 am
             10:01 am on the current day.

     10      10:00 am on the current day.

             00:00 am, September 17, 2009.

     10:01 am Sep 17, 2009
             10:01 am, September 17, 2009.

     Note that relative time specifications do not always work as expected.  For example, the
     “next” qualifier is intended to be used in conjunction with a day such as “next Monday”.
     When used with units of weeks, months, years, etc the result will be one more than expected.
     For example, “next week” will result in a time exactly two weeks from now, which is probably
     not what was intended.  This will be addressed in a future version of sudoreplay.

   Debugging sudoreplay
     sudoreplay versions 1.8.4 and higher support a flexible debugging framework that is
     configured via Debug lines in the sudo.conf(5) file.

     For more information on configuring sudo.conf(5), please refer to its manual.


     /etc/sudo.conf            Debugging framework configuration

     /var/log/sudo-io          The default I/O log directory.

                               Example session log info.

                               Example session standard input log.

                               Example session standard output log.

                               Example session standard error log.

                               Example session tty input file.

                               Example session tty output file.

                               Example session timing file.

     Note that the stdin, stdout and stderr files will be empty unless sudo was used as part of a
     pipeline for a particular command.


     List sessions run by user millert:

           # sudoreplay -l user millert

     List sessions run by user bob with a command containing the string vi:

           # sudoreplay -l user bob command vi

     List sessions run by user jeff that match a regular expression:

           # sudoreplay -l user jeff command '/bin/[a-z]*sh'

     List sessions run by jeff or bob on the console:

           # sudoreplay -l ( user jeff or user bob ) tty console


     script(1), sudo.conf(5), sudo(8)


     Many people have worked on sudo over the years; this version consists of code written
     primarily by:

           Todd C. Miller

     See the CONTRIBUTORS file in the sudo distribution (
     for an exhaustive list of people who have contributed to sudo.


     If you feel you have found a bug in sudoreplay, please submit a bug report at


     Limited free support is available via the sudo-users mailing list, see to subscribe or search the archives.


     sudoreplay is provided “AS IS” and any express or implied warranties, including, but not
     limited to, the implied warranties of merchantability and fitness for a particular purpose
     are disclaimed.  See the LICENSE file distributed with sudo or for complete details.