Linux Tells Us What's Up (new version of 'sup' tool!)

by admin @ 9:44 am. Filed under bash, sweet tools

I have updated the ‘sup’ bash script so that you can see some useful stats about your Linux box at a glance. Here is some output:

  User:         scott (uid:1000)
  Groups:       users dialout video
  Working dir:  /home/scott
  Home dir:     /home/scott
  Hostname:     suse-linux
  IP (lo):      127.0.0.1/8
  IP (lo):      127.0.0.2/8
  IP (eth0):    192.168.12.144/24
  Gateway:      192.168.12.2
  Name Server:  192.168.12.1
  Date:         Wed Jan 21 09:38:57 MST 2009
  Uptime:        9:38am  up 15 days 23:36,  6 users,  load average: 0.22, 0.22, 0.24
  Kernel:       Linux suse-linux 2.6.25.18-0.2-pae #1 SMP 2008-10-21 16:30:26 +0200 i686 i686 i386 GNU/Linux
  Memory:       Total: 2016Mb   Used: 972Mb     Free: 1044Mb
  Swap:         Total: 4102Mb   Used: 150Mb     Free: 3952Mb
  Architecture: i686
  Processor:    0 : Intel(R) Pentium(R) Dual CPU E2160 @ 1.80GHz
  Processor:    1 : Intel(R) Pentium(R) Dual CPU E2160 @ 1.80GHz

I’ve added the processor info and gateway and nameserver info. I’ve commented out some other stuff that will give you your sound card info, video card info, and basically everything you can get with “lspci -v”. That would be why it’s commented out. Anyway, take a look at the new version:

Linux ‘sup’ bash script

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[Comments (12)] [link]

12 Responses to “Linux Tells Us What's Up (new version of 'sup' tool!)”

Emmanuel Briot Says:
January 21st, 2009 at 10:54 am
I suggest you also add the temperature of the processor. I find this quite useful on a laptop. The basic solution is

cat /proc/acpi/thermal_zone/THM/temperature

which displays:

temperature: 57 C
Lonnie Olson Says:
January 21st, 2009 at 11:32 am
Just some simple comments about your script:
1. In many of your printf statements you close the quoted string to print a variable. This is unnecessary. Bash will expand all variables that are inside double-quotes.

So this:
printf ” Groups:\t”$MYGROUPS”\n”
Can become this:
printf ” Groups:\t$MYGROUPS\n”

Slightly more readable, and 2 fewer characters.

2. You use “cat” twice, and neither time is necessary. Most GNU commands can take filenames as arguments, or you can simply use the “< filename” to input content on stdin. http://sial.org/howto/shell/useless-cat/

So this:
cat /etc/resolv.conf | tail -n 4 …
Becomes this:
tail -n 4 /etc/resolv.conf …

and this:
cat /proc/cpuinfo | grep “model name\|processor” …
becomes this:
grep “model name\|processor” /proc/cpuinfo …

This saves additional command forking and keeps code succinct.

Other than these two extremely minor points, you are doing a great job. It’s really cool. I might just use it in a .bashrc or something like that.
Scott Morris Says:
January 21st, 2009 at 12:32 pm
Lonnie,

Again, thanks for the suggestions! I appreciate it. Helps make it better for anyone else who may find it useful. Thanks again for stopping by.
Scott Morris Says:
January 21st, 2009 at 12:33 pm
I’ll have to take a look at that…. that sounds like a cool idea. Thanks for the suggestion!
Espank Me Says:
January 28th, 2009 at 4:52 pm
Is your cubicle filled with pics of Type-O Negative?
David McGuire Says:
January 28th, 2009 at 10:03 pm
I’m downloading 11.1 Live CD right now. I’ve already (accidentally) made the DVD installation disk. But, I want to try out the Live CD version 1st.

I live in Layton.
Scott Morris Says:
January 29th, 2009 at 8:36 am
Jeremy? Is that you?
Espank Me Says:
January 29th, 2009 at 11:49 am
Era tan obvio? pense en mencionar algo de El tigrito o Las Gemelas, pero decidi que algo de Espankear seria mas chistoso. Eres alguien bien dificil de encontrar sabes?
Scott Morris Says:
January 30th, 2009 at 9:10 am
o Charo en Puerto La Cruz. Mira, tienes profil en linkedin o facebook?
Scott Morris Says:
January 30th, 2009 at 9:24 am
Tambien, me puedes enviar un email o contactarme por el “Contact Me” al lado izquierdo.
Patrick Says:
February 6th, 2009 at 1:42 am
Hello, I’m just new here but I’ve been intrested in Scott’s books
Scott Morris Says:
February 13th, 2009 at 9:52 am
Patrick,
Well thanks for coming by! Glad I could be of help to you with the books. Have a good one, and enjoy OpenSUSE Linux!