how to edit turnkey-sysinfo for the MOTD system info

Hey,

I have recently installed Turnkey Domain controller to run in my network. I would like to set up the MOTD on ssh login to show more then just the free space on "/". I cannot figure out how to change it. I have tried adding a line to the file /usr/bin/turnkey-sysinfo but it will only replace the disk usage and not add another one to it.

Any help would be great.

Alex

Replies (3)

Its not the MOTD itself

Reply 1 2012-10-09

Hey,

Its the turnkey-sysinfo that i am having issues, the MOTD pulls info from that file, and I cannot seem to figure it out.

#!/usr/bin/python

# This file is part of turnkey-sysinfo

# turnkey-sysinfo is open source software; you can redistribute it and/or

# modify it under the terms of the GNU General Public License as

# published by the Free Software Foundation; either version 3 of the

# License, or (at your option) any later version.

import os

import re

import disk

from memstats import MemoryStats

from datetime import datetime

import netinfo

import commands

NIC_BLACKLIST = ('lo')

def get_nics():

nics = []

for ifname in netinfo.get_ifnames():

if ifname in NIC_BLACKLIST:

continue

nic = netinfo.InterfaceInfo(ifname)

if nic.is_up and nic.address:

nics.append((ifname, nic.address))

nics.sort(lambda a,b: cmp(a[0], b[0]))

return nics

def get_loadavg():

return os.getloadavg()[0]

def get_pids():

return [ int(dentry) for dentry in os.listdir("/proc")

if re.match(r'\d+$', dentry) ]

def main():

system_load = "System load: %.2f" % get_loadavg()

processes = "Processes: %d" % len(get_pids())

disk_usage = "Usage of /: " + disk.usage("/")

When I try to add another line of disk_usage it just overwrites the current one

memstats = MemoryStats()

memory_usage = "Memory usage: %d%%" % memstats.used_memory_percentage

swap_usage = "Swap usage: %d%%" % memstats.used_swap_percentage

rows = []

rows.append((system_load, memory_usage))

rows.append((processes, swap_usage))

nics = [ "IP address for %s: %s" % (nic, address)

for nic, address in get_nics() ]

column = [disk_usage]

if nics:

column.append(nics[0])

rows.append(column)

for nic in nics[1:]:

rows.append(('', nic))

print "System information (as of %s)" % datetime.now().strftime("%a %b %d %H:%M:%S %Y")

max_col = max([ len(row[0]) for row in rows ])

tpl = " %%-%ds %%s" % max_col

for row in rows:

print tpl % (row[0], row[1])

if os.geteuid() == 0:

error, output = commands.getstatusoutput("tklbam-status")

error_nosuchcommand = (os.WEXITSTATUS(error) == 127)

if not error_nosuchcommand:

print output,

if __name__=="__main__":

main()

I have written in bold what i have tried, I hope this might help a little more.

Thanks,

Alex

I'm not familiar with customising the MOTD

Reply 2 2012-10-08

But Debian has a wiki page on it (TKL v12.x is based on Debian 6/Squeeze).

HowTo edit turnkey-sysinfo for MOTD

Reply 3 2013-04-03

Ok so I added a separate data volume to separate file shares from system volume, and I also wanted to know disk space of the volume supporting the file shares on login.

Here's what my current MOTD looks like:

Linux smbserver 2.6.32-45-generic-pae #102-Ubuntu SMP Wed Jan 2 22:10:16 UTC 2013 i686 GNU/Linux
Ubuntu 10.04.2 LTS
Welcome to Smbserver, TurnKey Linux 11.1 / Ubuntu 10.04 Lucid LTS

  System information (as of Wed Apr 03 05:21:18 2013)

    System load:  0.00                     Memory usage:  32%
    Processes:    111                      Swap usage:    2%
    Usage of /:   45.1% of 16.73GB         IP address for eth0:  192.168.x.x
    Usage of /data/:   95.0% of 125.89GB

  TKLBAM (Backup and Migration):  NO BACKUPS

    To backup for the first time run the "tklbam-backup" command. For
    details see the man page or go to:

        /tklbam

Last login: Tue Apr  2 17:25:12 2013 from xxxxxx

I edited the file with vi /usr/lib/turnkey-sysinfo/turnkey-sysinfo.py

Use pico if vi confuses you.

Under def_main(): I added a new disk.usage variable (disk_usage1) right after the first one referencing where I mounted the second disk,

disk_usage = "Usage of /: " + disk.usage("/")
disk_usage1 = "Usage of /data/: " + disk.usage("/srv/storage/data")

then added a "row" with rows.append((disk_usage1,'')) in front of the print statements which pull everything together.

    for nic in nics[1:]:
        rows.append(('', nic))
    rows.append((disk_usage1,''))

Hope this helps.

Best regards,

Jeff