Free sys software for linux

Inf sys is a SuperKaramba lm-sensors hddtemp theme.
3 color systems black, white and grey.
It shows:
- System Info
- Memory Load
- Disk Usage
- Fans/Temp

KuSys-Info is a Ku(buntu) Sys(tem)-Info.
KuSys-Info karamba applet is based on transwhite. I adapted it a bit and modified it so that it fits to my system and themes.
Detection of OS is not automatically right now, so you probably have to adapt the script.
To change to the right network interface change all ra0 entries to your interface.
Displays:
- CPU fan, usage and type
- System ID, KDE version and user
- Uptime, kernel version
- RAM and SWAP Usage
- network traffic
- hard disk usage

Sys::Sig is a Perl module to return signal constants for this host.

use Sys::Sig;


my $TERM = Sys::Sig->TERM;

kill $TERM, $pid;

or

my $Sig = new Sys::Sig;

my $TERM = $Sig->TERM;
...

NOTE: the signal name is not case sensitive. The following will work just as well for METHODS ONLY:

my $TERM = $Sig->TeRm;

Sys::Gamin is a Perl interface to Gamin (File Access Monitor implementation).

SYNOPSIS

use Sys::Gamin;
my $fm=new Sys::Gamin;
$fm->monitor(/foo);
$fm->monitor(/foo/bar.txt);
while (1) {
my $event=$fm->next_event; # Blocks
print "Pathname: ", $event->filename,
" Event: ", $event->type, "n";
}
Asynchronous mode:
while ($fm->pending) {
my $event=$fm->next_event; # Immediate
...
}
# Do something else

Provides a somewhat higher-level and friendlier interface to the Gamin File Access Monitor API. This allows one to monitor both local and remote (NFS-mounted) files and directories for common filesystem events. To do so, you must register "monitors" on specified pathnames and wait for events to arrive pertaining to them.

Since FAM only deals with absolute pathnames, all paths are canonicalized internally and monitors are held on canonical paths. Whenever a path is returned from this module, howvever, via which or monitored with no arguments, the originally specified path is given for convenience.

Sys::OutPut is a Perl module to help make output easier.

SYNOPSIS

usage Sys::OutPut;

talk $fmtstr [, @args];

out $fmtstr [, @args];

put $fmtstr [, @args];

err $fmtstr [, @args];

debug $fmtstr [, @args];

$Sys::OutPut::quiet = $::quiet;

$Sys::OutPut::debug = $::debug;

These subroutines will make generating output to STDOUT and STDERR easier.

All of the routines treat the $fmtstr argument as a printf format string, with @args as the format string arguments.

The talk routine generates output to STDERR only if the variable $Sys::OutPut::quiet is non-null and non-zero.

The out routine generates output to STDOUT, with a newline appended to , if it is not already terminated with one.

The put routine generates output to STDOUT, without any additional trailing newline.

The err routine generates output to STDERR, with a newline appended if needed.

The debug routine generates output to STDERR only if the variable

$Sys::OutPut::debug is non-null and non-zero, which is also returned as the result.

This allows for convenient usages such as in the following example:

sub foo {
...
return if debug "Stopping now.";
...
next if debug "Skipping further processing";
...
}

If not defined by the user, the $Sys::OutPut::quiet and $Sys::OutPut::debug variables are initialized from their corresponding main variables $::quiet and $::debug, respectively, unless they are already defined.

Sys::MemInfo is a Perl module for memory informations.

SYNOPSIS

use Sys::MemInfo qw(totalmem freemem totalswap);

print "total memory: ".(&totalmem / 1024)."n";
print "free memory: ".(&freemem / 1024)."n";

print "total swap: ".(&totalswap / 1024)."n";
print "free swap: ".(Sys::MemInfo::get("freeswap") / 1024)."n";

Sys::MemInfo return the total amount of free and used physical memory in bytes in totalmem and freemem variables.
Total amount of free and user swap memory are alse returned in totalswap and freeswap variables.

This module has been tested on Linux 2.6.10, UnixWare 7.1.2, AIX5, OpenBSD 3.8, NetBSD 2.0.2, FreBSD 5.4, HPUX11, Solaris 9, Tru64 5.1, Irix 6.5, Mac OS X 10.2 darwin and Windows XP.
It should work on FreeBSD 4 and Windows 9X/ME/NT/200X/Vista.

METHODS

availkeys

Return list of all accessor keys (freemem, totalmem, etc.) This is useful for dumping out all known information from the object by calling get() on all of the returned keys.

freemem

Returns free physical memory in bytes.

freeswap

Returns free swap space in bytes.

get

Returns the value of the passed key.

totalmem

Returns total physical memory size in bytes.

totalswap

Returns total swap space in bytes.

Sys::Filesystem project is intended to be a portable interface to list and query filesystem names and their properties.

It hopes to provide a consistent API to list all, mounted, unmounted, and special filesystems on a system, and query as many properties as possible with common aliases wherever possible.

Sys::Utmp::Utent is a Perl module to represent a single utmp entry.

SYNOPSIS

use Sys::Utmp;

my $utmp = Sys::Utmp->new();

while ( my $utent = $utmp->getutent() )
{
if ( $utent->user_process )
{
print $utent->ut_user,"n";
}
}

$utmp->endutent;

As described in the Sys::Utmp documentation the getutent method returns an object of the type Sys::Utmp::Utent which provides methods for accessing the fields in the utmp record. There are also methods for determining the type of the record.

The access methods relate to the common names for the members of the C struct utent - those provided are the superset from the Gnu implementation and may not be available on all systems: where they are not they will return the empty string.

ut_user

Returns the use this record was created for if this is a record for a user process. Some systems may return other information depending on the record type. If no user was set this will be the empty string. If tainting is switched on with the -T switch to perl then this will be tainted as it is possible that the user name came from an untrusted source.

ut_id

The identifier for this record - it might be the inittab tag or some other system dependent value.

ut_line

For user process records this will be the name of the terminalor line that the user is connected on.

ut_pid

The process ID of the process that created this record.

ut_type

The type of the record this will have a value corresponding to one of the constants (not all of these may be available on all systems and there may well be others which should be described in the getutent manpage or in /usr/include/utmp.h ) :

ACCOUNTING - record was created for system accounting purposes.
BOOT_TIME - the record was created at boot time.
DEAD_PROCESS - The process that created this record has terminated.
EMPTY - record probably contains no other useful information.
INIT_PROCESS - this is a record for process created by init.
LOGIN_PROCESS - this record was created for a login process (e.g. getty).
NEW_TIME - record created when the system time has been set.
OLD_TIME - record recording the old tme when the system time has been set.
RUN_LVL - records the time at which the current run level was started.
USER_PROCESS - record created for a user process (e.g. a login )
for convenience Sys::Utmp::Utent provides methods which are lower case versions of the constant names which return true if the record is of that type.

ut_host

On systems which support this the method will return the hostname of the host for which the process that created the record was started - for example for a telnet login. If taint checking has been turned on (with the -T switch to perl ) then this value will be tainted as it is possible that a remote user will be in control of the DNS for the machine they have logged in from. ( see perlsec for more on tainting )

ut_time

The time in epoch seconds wt which the record was created.