What version???

[stingray72]

How do I find out what version of software I am running?

Say something needs at least QT2.2. How do I find out what version, if any, is on my machine?

Thanks...

[undef]

just run program_name --version

or just program_name alone should tell you which option to use to get the program version

[EyesWideOpen]

To add to what undef said you could also try:

progname -V
man progname (to find out what the command is to display the version info)
rpm -q progname (if RPM)