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RUSHLAST(1) Rush User Reference RUSHLAST(1)
NAME
rushlast - show listing of last Rush logins
SYNOPSIS
rushlast [-Hh] [-F STRING] [-f DIR] [-n NUMBER] [--file=DIR] [--format=STRING] [--forward]
[--help] [--no-header] [--number=NUMBER] [--usage] [--version] [USER...]
NOTE
This manpage is a short description of rushlast. For a detailed discussion, including ex-
amples and usage recommendations, refer to the manual GNU Rush -- a restricted user shell,
available in texinfo format. If the info reader and the rush documentation are properly
installed on your system, the command
info rushlast
should give you access to the complete manual.
You can also view the manual using the info mode in emacs(1), or find it in various for-
mats online at
http://www.gnu.org.ua/software/rush/manual
If any discrepancies occur between this manpage and the Manual, the later shall be consid-
ered the authoritative source.
DESCRIPTION
Searches back through the GNU Rush database and displays a list of all user sessions since
the database was created.
The utility operates on the default accounting database, which is maintained only if
rush(1) runs in accounting mode.
OPTIONS
-F, --format=STRING
Use STRING instead of the default format. Use STRING instead of the default for-
mat. See the section FORMAT, for a detailed discussion of the format syntax. If
the STRING begins with a @, then this character is removed from it, and the result-
ing string is regarded as a name of the file to read. The file is read literally,
except that lines beginning with a semicolon are ignored.
-f, --file=DIR
Look for database files in DIR.
--forward
Show entries in chronological order.
-H, --no-header
Do not display header line.
-n, --count=NUMBER
Show at most NUMBER records.
Other options
-h, --help
Give this help list.
--usage
Give a short usage message.
--version
Print program version.
ENVIRONMENT
RUSHLAST_FORMAT
When set, supplies a format string to use instead of the built-in format. If the
value begins with a @ sign, rest of characters is treated as the name of file to
read the format from, similarly to the --format option, which see.
The precedence rule for format selection is:
1. The --format option.
2. The RUSHLAST_FORMAT environment variable.
3. Built-in format.
FORMATS
The format string supplied with the -F (--format) option controls the output of every
record from the GNU Rush accounting database. It consists of the following classes of ob-
jects:
Ordinary characters
These are copied to the output verbatim.
Escapes
An escape is a backslash, followed by a single character. It is interpreted ac-
cording to the following table:
Sequence Replaced with
\a Audible bell character (ASCII 7)
\b Backspace character (ASCII 8)
\e Escape character (ASCII 27)
\f Form-feed character (ASCII 12)
\n Newline character (ASCII 10)
\r Carriage return character (ASCII 13)
\t Horizontal tabulation character (ASCII 9)
\v Vertical tabulation character (ASCII 11)
\\ A single backslash
\" A double-quote.
Any escape not listed in the table above results in its second character being out-
put.
Quoted strings
Strings are delimited by single or double quotes. Within a string escape sequences
are interpreted as described above.
Format specifications
Format specification can be regarded as a kind of function, which outputs a partic-
ular piece of information from the database record. Syntactically, format specifi-
cation starts with an opening brace and ends with a closing brace. The first word
after the brace is the name of the specification. The rest of words are positional
arguments followed by keyword arguments. Both are optional. A keyword argument
begins with a colon.
The available format specifications are:
(newline [COUNT])
Causes the newline character to be output. If the optional count is supplied, that
many newlines will be printed
(tab [COUNT])
Advance to the next tab stop in the output stream. If optional COUNT is present,
then skip that many tab stops. Each tab stop is eight characters long.
The following specifications output particular fields of a database record. They all take
two positional arguments: WIDTH and TITLE.
The first argument, WIDTH sets the maximum output length for this specification. If the
number of characters actually output is less than the width, they will be padded with
whitespace either to the left or to the right, depending on the presence of the :right
keyword argument. If the number of characters is greater than WIDTH, they will be trun-
cated to fit. If WIDTH is not given, the exact data are output as is.
The second argument, TITLE, gives the title of this column for the heading line. By de-
fault no title is output.
Every field specification accepts at least two keyword arguments. The keyword :right may
be used to request alignment to the right for the data. This keyword is ignored if WIDTH
is not given.
The keyword :empty followed by a string causes the program to output that string if the
resulting value for this specification would otherwise be empty.
(user WIDTH TITLE [:empty REPL][:right])
Print the user login name.
(start-time WIDTH TITLE [:empty REPL][:right][:format DATE-FORMAT])
Date and time when the session started.
The :format keyword introduces the strftime(3) format string to be used when con-
verting the date for printing. The default value is "%a %H:%M".
(stop-time WIDTH TITLE [:empty REPL][:right][:format DATE-FORMAT])
Time when the command finished. If it is still running, the word running is out-
put.
(duration WIDTH TITLE [:empty REPL][:right])
Total time of the session duration.
(rule WIDTH TITLE [:right])
The tag of the rule that was used to serve the user.
(command WIDTH TITLE [:empty REPL][:right])
Command line being executed.
(pid WIDTH TITLE [:right])
PID of the process.
The default format is:
(user 10 Login)" "
(rule 8 Rule)" "
(start-time 0 Start)" "
(stop-time 0 Stop)" "
(duration 7 Time)" "
(command 32 Command)
SEE ALSO
rush(1), rushwho(1).
AUTHORS
Sergey Poznyakoff
BUG REPORTS
Report bugs to <bug-rush AT gnu.ua>.
COPYRIGHT
Copyright (C) 2016 Sergey Poznyakoff
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it. There is NO WARRANTY,
to the extent permitted by law.
RUSHLAST August 17, 2016 RUSHLAST(1)
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On Apache
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