optionalg / 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: