05-15-2011
Given that this is for an assignment, I'll only make a few suggestions that should allow you to figure it out.
First, check out the man page for the who command. This should help with your first requirement.
Secondly, ps -e probably isn't going to give you enough information based on your requirements. Again check the man page, particularly the -o option. This will be key in meeting the second requirement of having your sort field be the first column.
Yes, piping the output of the ps command through the sort and head commands will indeed give you the desired output for the last part of your assignment, so you are on the right track. Right now you need to tailor the ps command to generate the needed data in the output.
Man pages are nicely linked from the unix.com site (see the top menu bar) for a fair few number of UNIX flavours. This should make getting a handle on these commands easier.
Hope this helps to get you going again.
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LEARN ABOUT DEBIAN
pyntor-selfrun
pyntor-selfrun(1) Pyntor pyntor-selfrun(1)
NAME
pyntor-selfrun - creation of self-extracting presentation archives
SYNOPSIS
pyntor-selfrun [OPTIONS] presentation-archive|presentation-directory
DESCRIPTION
Pyntor is a presentation tool which can display slides and effects of various formats. The tool pyntor-selfrun allows one to create self-
extracting archives containing both the presentation and Pyntor itself, so that it can be run on computers where Pyntor itself is not
installed. It also ensures independence of the corresponding Pyntor version, as future changes of the application do not affect the previ-
ously created presentations. The way pyntor-selfrun works is that it takes the presentation-archive in question, packed as a tarball
(which might be named *.pyntor), and the release tarball of Pyntor which must be present somewhere. Using a template file, it then creates
the self-running and self-extracting script for distribution.
In case the presentation-archive does not exist yet, pyntor-selfrun can create it automatically from a presentation-directory. This is use-
ful even when not creating self-extracting archives, see the -a option.
OPTIONS
-t, --template=templatefile
Uses a template different from that one which is shipped with Pyntor and used by default. The template is a script in Python or
another scripting language, which contains the variables %PYNTOR% and %ARCHIVE% which are replaced with the base64-encoded contents
of the two files given as arguments to pyntor-selfrun. This option is not recommended for most cases.
-a, --archive
Creates a pyntor presentation-archive from a directory which contains a script file, local data files and optionally some local com-
ponents. This is a convenience operation, since presentation archives are just tarballs, but in the future some checks might be
done here.
-r, --release=sourcetarball
Specifies where to find Pyntor itself to include it into the self-extracting archive. The source tarball should be a released pyn-
tor-*.tar.gz file.
-h, --help
Displays a summary of all available command line options.
BUGS
In a future version, pyntor-selfrun should allow to create *.pyntor archives automatically by examining a script file, including only those
files of Pyntor which it really needs.
AUTHORS
Josef Spillner <josef@coolprojects.org>
SEE ALSO
pyntor(1), pyntor-components(1)
Cool Projects 0.6 pyntor-selfrun(1)