Start and stop VMWARE VPS / virtual machine guest operating system from command line

Posted on in Categories Howto, Linux, Linux distribution, RedHat/Fedora Linux, Sys admin, Tips last updated June 30, 2007

Vmware server comes with the nifty vmware-cmd utility. It allows an administrator to perform various operations on a virtual machine from Linux command line / shell prompt such as:

=> Stop / Start VM

=> Get VM status

=> Setup variables

=> Powerdown VM and much more

Task: Lists the virtual machines on the local server

You can list all servers and config file, enter:
# vmware-cmd -l
Output:

/nas/vms/Ubuntu/Ubuntu.vmx
/nas/vms/FreeBSD/FreeBSD.vmx
/nas/vms/OpenBSD/OpenBSD.vmx
/nas/vms/Debian4/Debian4.vmx
/nas/vms/CentOS5/CentOS5.vmx

Turn on VM / Power up VPS

Just pas start option to vmware-cmd,
# vmware-cmd /nas/vms/FreeBSD/FreeBSD.vmx start

To stop VM/VPS, enter:
# vmware-cmd /nas/vms/FreeBSD/FreeBSD.vmx stop

To reset VM/VPS, enter:
# vmware-cmd /nas/vms/FreeBSD/FreeBSD.vmx reset

To suspend VM/VPS, enter:
# vmware-cmd /nas/vms/FreeBSD/FreeBSD.vmx suspend

Find out if OpenBSD VM is on or off:
# vmware-cmd /disk2.vmware/vms/OpenBSD/OpenBSD.vmx getstate
Output:

getstate() = off

vmware-cmd offers other options, please consult VMWARE documentation for more information.

Quickly find out supportable character sets, currency and numeric formats in Linux

Posted on in Categories Howto, Linux, Linux desktop last updated June 18, 2007

A quick way to get locale-specific information is use locale command. The locale program writes information about the current locale environment such as:

=> Character classification and case conversion.

=> Date and time formats.

=> Numeric formats

=> Currency symbols

=> Measurement units and much more

When invoked without arguments, locale summarizes the current locale environment for each locale category defined by the LC_* environment variables.
$ locale
Output:

LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

You can print the coded character sets known using following command:
$ iconv --list