Ubuntu – How to tell what date Ubuntu was installed

command linelogsystem-installation

is there a command which will output the date that ubuntu (or any distribution) was installed?

Best Answer

You can check the installer logs and dates at:

/var/log/installer

A quick way to find the date through the command line would be by running:

ls -lt /var/log/installer

That lists in reverse chronological order so the oldest file is at the bottom of the list.

Related Solutions

Upgrade Log – How to Find the Original Ubuntu Version Installed

If you have not done manual modifications, you should see the utilised installation media on the top of /etc/apt/sources.list:

# deb cdrom:[Kubuntu 10.04 LTS _Lucid Lynx_ - Release i386 (20100427)]/ lucid main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

Apport (the Ubuntu bug reporter) uses /var/log/installer/media-info to determine the installation media which contains:

Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)

This only works if you kept the /var/log/installer folder.

Ubuntu – How to change the default date output format for the date command

You can make an alias for date in .bashrc by typing alias date='date +%Y.%m.%d.%R' and then doing source .bashrc, if you want to change date default format.

Best Answer

Related Solutions

Upgrade Log – How to Find the Original Ubuntu Version Installed

Ubuntu – How to change the default date output format for the date command

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