peter-moller/system-info

Script to give overview of an Operating System

system-info

A bash-script that answers the question: “where have I landed” when you as a sysadmin log in to a new computer!

The script presents basic information of the OS you are running. (A full report of everything is not the intention)

Main targets: OS X and Linux. It would be nice to cover other Unix systems, but that comes later.

The following information is presented:

• OS Release
• OS architecture & bit count
• Virtual environment (if any)
• Connection to Active Directory or LDAP
• If the computer is managed by any of the major management tools
• CPU
• Memory
• Disk info
• Network info
• Security information
• Graphics info
• Extra information (listing package managers and logged in users)

Tested Distributions:

• OS X: 10.10, 10.11, 10.12
• Linux: CentOS 6 & 7; Ubuntu 14 & 16; Mageia 5; Debian 8; Arch Linux

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Options:

• -i gives you information about commands that will allow you to dig deeper yourself :-)

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Requirements:

• Generally, the script is written using only standard bash tools available on both macOS and Linux
• However, on Linux, dmidecode (http://savannah.nongnu.org/projects/dmidecode/) is used for many things. If you don't have it your distro, memory reporting will be omitted [on Linux]. Also, smartctlis used to detect SMART-information and hdparm for TRIM status
• If you are not running the script as root, the following information will be detected:
  • (Linux): some details about virtual environment (i.e. dmidecode)
  • (Linux): memory type, speed and number of DIMMs (i.e. dmidecode)
  • (macOS): presence of firmware password
  • (macOS): status of the packetfiler firewall
  • (macOS): whether Profiles are enabled of not
  • (both): open LISTEN-ports belonging to processer other than your own

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Screen shot for macOS:

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Screen shot for Linux:

system-info's Issues

[Linux:security-info] Implement

This could display some information regarding SELinux, iptables, nftables, etc.

[Linux:disk-info] Implement

Implement something similar to macOS. lsblk returns some amount of information regarding filesystems for example.

[Linux:graphics-info] Implement

Implement something similar to what is done on macOS.
For example, using lspci -v | awk '/VGA|3D/,/^$/' would list all GPUs as well as some extra information, such as current driver in use. It sadly does not contain the amount of VRAM, but some (most?) drivers output it either in dmesg or Xorg.0.log.

[Mac:graphics-info] identify displays

This is maybe a bit too far off, but would be nice to have :-)

[Mac:management software] Detect “munki”

The device management software “munki” needs to be identified

[Mac:disk-info] identify soft-RAID

Identifying a soft RAID (AppleRAID) is a bit tricky

[Mac:disk-info] identify FileVault

FileVault [2] uses Core Storage and is a bit tricky to deal with

[General] Get intelligent error output

One may have some mechanism for getting useful info when something goes wrong instead of piping all stderr to /dev/null.

This needs to be looked into!

[Network]: TODO

On both Linux and macOS:

• List all network interfaces (and not only the active ones)
• List them in a more coherent fashion, i.e. use the table format from the macOS listing for Linux as well
• List them in the order they are used!
• List listening ports. The code for this can be more or less copied straight from open-ports (https://github.com/Peter-Moller/open-ports). This may be too much info, but worth looking into!

[General] Question: virtual?

Is it possible to detect weather a machine is a virtual one? Be it VMware, Xen or any other VM system?
It would be an interesting information to display!

[Linux:disk] Detect boot-loader

It would be really neat to detect boot loader – at least on Linux. On macOS, it's hardly relevant (I think)