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How do I check the version of a program in Linux?

Posted on 2004-10-14
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Last Modified: 2013-11-13
How do I check the version of a program in Linux? In command line interface.
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Question by:DBDevOne
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net_sec_guru earned 250 total points
ID: 12310493
I usually use two different methods:

<command to execute command> -v
ie - # nmap -v

or else I will query the rpm database for version:
rpm -qa |grep <program> (qa will show all programs installed so you need to grep for the one you want)
ie # rpm -q libc

Hope this helps!

And you can always "man" the program and check out how to check version number in there.
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Expert Comment

by:Sunjith
ID: 12310711
If -v does not work, try -V or --version
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Author Comment

by:DBDevOne
ID: 12311449
Thank you!!
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